diff --git a/app/admin/views.py b/app/admin/views.py
index 566fbac9..0cc915b1 100644
--- a/app/admin/views.py
+++ b/app/admin/views.py
@@ -2,7 +2,7 @@ from app import db
 from app.decorators import admin_required
 from app.models import Role, User
 from app.tables import AdminUserItem, AdminUserTable
-from app.background_functions import delete_user_
+from app.profile.background_functions import delete_user_
 from flask import current_app, flash, redirect, render_template, url_for
 from flask_login import login_required
 from . import admin
@@ -31,7 +31,7 @@ def for_admins_only():
 @login_required
 @admin_required
 def admin_user_page(user_id):
-    selected_user = User.query.filter_by(id=user_id).first()
+    selected_user = User.query.get_or_404(user_id)
     title = 'Administration of user {} with ID: {}'.format(
         selected_user.username,
         selected_user.id
diff --git a/app/auth/views.py b/app/auth/views.py
index 146294f3..74afc490 100644
--- a/app/auth/views.py
+++ b/app/auth/views.py
@@ -41,15 +41,15 @@ def logout():
 def register():
     if not current_user.is_anonymous:
         return redirect(url_for('main.dashboard'))
-    form = RegistrationForm()
-    if form.validate_on_submit():
-        user = User(email=form.email.data.lower(),
-                    password=form.password.data,
-                    username=form.username.data)
+    registration_form = RegistrationForm()
+    if registration_form.validate_on_submit():
+        user = User(email=registration_form.email.data.lower(),
+                    password=registration_form.password.data,
+                    username=registration_form.username.data)
         db.session.add(user)
         db.session.commit()
         dir = os.path.join(current_app.config['OPAQUE_STORAGE_DIRECTORY'],
-                           str(job.user_id), 'jobs', str(job.id))
+                           str(user.id))
         try:
             os.makedirs(dir)
         except OSError:
@@ -57,15 +57,11 @@ def register():
             user.delete()
         else:
             token = user.generate_confirmation_token()
-            send_email(user.email,
-                       'Confirm Your Account',
-                       'auth/email/confirm',
-                       token=token,
-                       user=user)
+            send_email(user.email, 'Confirm Your Account',
+                       'auth/email/confirm', token=token, user=user)
             flash('A confirmation email has been sent to you by email.')
             return redirect(url_for('auth.login'))
-    return render_template('auth/register.html.j2',
-                           form=form,
+    return render_template('auth/register.html.j2', form=registration_form,
                            title='Register')
 
 
diff --git a/app/background_functions.py b/app/background_functions.py
deleted file mode 100644
index b98b3bd1..00000000
--- a/app/background_functions.py
+++ /dev/null
@@ -1,25 +0,0 @@
-from .models import Corpus, Job, User
-
-
-def delete_corpus_(app, corpus_id):
-    with app.app_context():
-        corpus = Corpus.query.filter_by(id=corpus_id).first()
-        if corpus is None:
-            raise Exception('Corpus {} not found!'.format(corpus_id))
-        corpus.delete()
-
-
-def delete_job_(app, job_id):
-    with app.app_context():
-        job = Job.query.filter_by(id=job_id).first()
-        if job is None:
-            raise Exception('Job {} not found!'.format(job_id))
-        job.delete()
-
-
-def delete_user_(app, user_id):
-    with app.app_context():
-        user = User.query.filter_by(id=user_id).first()
-        if user is None:
-            raise Exception('User {} not found!'.format(user_id))
-        user.delete()
diff --git a/app/jobs/background_functions.py b/app/jobs/background_functions.py
new file mode 100644
index 00000000..db47332e
--- /dev/null
+++ b/app/jobs/background_functions.py
@@ -0,0 +1,9 @@
+from app.models import Job
+
+
+def delete_job_(app, job_id):
+    with app.app_context():
+        job = Job.query.filter_by(id=job_id).first()
+        if job is None:
+            raise Exception('Job {} not found!'.format(job_id))
+        job.delete()
diff --git a/app/jobs/views.py b/app/jobs/views.py
index 20b86a23..7b1b24fd 100644
--- a/app/jobs/views.py
+++ b/app/jobs/views.py
@@ -1,9 +1,9 @@
 from app.models import Job, JobInput, JobResult
-from app.background_functions import delete_job_
 from flask import (abort, current_app, flash, redirect, render_template,
                    send_from_directory, url_for)
 from flask_login import current_user, login_required
 from . import jobs
+from .background_functions import delete_job_
 import os
 import threading
 
diff --git a/app/profile/background_functions.py b/app/profile/background_functions.py
new file mode 100644
index 00000000..db136f72
--- /dev/null
+++ b/app/profile/background_functions.py
@@ -0,0 +1,9 @@
+from app.models import User
+
+
+def delete_user_(app, user_id):
+    with app.app_context():
+        user = User.query.filter_by(id=user_id).first()
+        if user is None:
+            raise Exception('User {} not found!'.format(user_id))
+        user.delete()
diff --git a/app/profile/views.py b/app/profile/views.py
index 2eaa1b02..82423059 100644
--- a/app/profile/views.py
+++ b/app/profile/views.py
@@ -1,8 +1,8 @@
 from app import db, logger
-from app.background_functions import delete_user_
 from flask import abort, current_app, flash, redirect, render_template, url_for
 from flask_login import current_user, login_required, logout_user
 from . import profile
+from .background_functions import delete_user_
 from .forms import ChangePasswordForm, EditProfileForm, EditUserSettingsForm
 import threading