diff --git a/app/models/forum.py b/app/models/forum.py
index 71d2381..acc2fff 100644
--- a/app/models/forum.py
+++ b/app/models/forum.py
@@ -19,7 +19,8 @@ class Forum(db.Model):
     parent    = db.relationship('Forum', backref='sub_forums', remote_side=id,
                     lazy=True, foreign_keys=parent_id)
 
-    # Also [topics] which is provided by a backref from the Topic class
+    # Other fields populated automatically through relations:
+    #   <topics>   List of topics in this exact forum (of type Topic)
 
     def __init__(self, url, name, prefix, descr="", parent=None):
         self.url = url
@@ -32,9 +33,9 @@ class Forum(db.Model):
         else:
             self.parent = parent
 
-    def __repr__(self):
-        return f'<Forum: {self.name}>'
-
     def post_count(self):
         """Number of posts in every topic of the forum, without subforums."""
         return sum(len(t.thread.comments) for t in self.topics)
+
+    def __repr__(self):
+        return f'<Forum: {self.name}>'
diff --git a/app/models/notification.py b/app/models/notification.py
index f2830e8..7ace4fa 100644
--- a/app/models/notification.py
+++ b/app/models/notification.py
@@ -11,13 +11,14 @@ class Notification(db.Model):
     href = db.Column(db.UnicodeText)
     date = db.Column(db.DateTime, default=datetime.now())
 
-    owner_id = db.Column(db.Integer, db.ForeignKey('member.id'), nullable=False)
+    owner_id = db.Column(db.Integer, db.ForeignKey('member.id'),nullable=False)
+    owner = db.relationship('Member', backref='notifications',
+        foreign_keys=owner_id)
 
-    def __init__(self, owner_id, text, href=None):
-        """ Check weather or not the id is valid before creating the notif! """
+    def __init__(self, owner, text, href=None):
         self.text = text
         self.href = href
-        self.owner_id = owner_id
+        self.owner = owner
 
     def __repr__(self):
         return f'<Notification to {self.owner.name}: {self.text} ({self.href})>'
diff --git a/app/models/privs.py b/app/models/privs.py
index 223629e..426f755 100644
--- a/app/models/privs.py
+++ b/app/models/privs.py
@@ -79,7 +79,7 @@ GroupMember = db.Table('group_member', db.Model.metadata,
     db.Column('uid', db.Integer, db.ForeignKey('member.id')))
 
 
-# Meny-to-many relationship for privileges granted to groups
+# Many-to-many relationship for privileges granted to groups
 class GroupPrivilege(db.Model):
     __tablename__ = 'group_privilege'
     id = db.Column(db.Integer, primary_key=True)
diff --git a/app/models/thread.py b/app/models/thread.py
index ab3eb74..bd1236b 100644
--- a/app/models/thread.py
+++ b/app/models/thread.py
@@ -12,7 +12,8 @@ class Thread(db.Model):
     top_comment_id = db.Column(db.Integer, db.ForeignKey('comment.id'))
     top_comment    = db.relationship('Comment', foreign_keys=top_comment_id)
 
-    # Also a relation [comments] populated from the Comment class.
+    # Other fields populated automatically through relations:
+    #  <comments>   The list of comments (of type Comment)
 
     def __init__(self):
         """
@@ -24,8 +25,8 @@ class Thread(db.Model):
 
     def set_top_comment(self, top_comment):
         """
-        Changes the top comment of the thread. The old top comment will become
-        visible in the flow of posts?
+        Changes the top comment of the thread. The old top comment will usually
+        become visible in the flow of posts instead of being pinned at the top.
 
         Arguments:
         top_comment -- new top comment, must belong to this thread
diff --git a/app/models/users.py b/app/models/users.py
index 55516dd..80da7e1 100644
--- a/app/models/users.py
+++ b/app/models/users.py
@@ -97,10 +97,12 @@ class Member(User):
     newsletter = db.Column(db.Boolean, default=False)
 
     # Relations
-    notifications = db.relationship('Notification', backref="owner", lazy=True)
     trophies = db.relationship('Trophy', secondary=TrophyMember,
         back_populates='owners')
 
+    # Other fields populated automatically through relations:
+    #   <notifications>   List of unseen notifications (of type Notification)
+
     def __init__(self, name, email, password):
         """Register a new user."""
         self.name = name