diff --git a/app/models/user.py b/app/models/user.py
index 6e31c62..325040d 100644
--- a/app/models/user.py
+++ b/app/models/user.py
@@ -3,11 +3,17 @@ from flask_login import UserMixin
 from sqlalchemy import func as SQLfunc
 from os.path import isfile
 from PIL import Image
+
 from app import app, db
 from app.models.priv import SpecialPrivilege, Group, GroupMember, \
     GroupPrivilege
 from app.models.trophy import Trophy, TrophyMember, Title
 from app.models.notification import Notification
+from app.models.post import Post
+from app.models.comment import Comment
+from app.models.topic import Topic
+from app.models.program import Program
+
 import app.utils.unicode_names as unicode_names
 import app.utils.ldap as ldap
 from app.utils.unicode_names import normalize
@@ -113,9 +119,15 @@ class Member(User):
     # Relations
     trophies = db.relationship('Trophy', secondary=TrophyMember,
         back_populates='owners')
-    topics = db.relationship('Topic')
-    programs = db.relationship('Program')
-    comments = db.relationship('Comment')
+
+    # Access to polymorphic posts
+    # TODO: Check that the query uses the double index on Post.{author_id,type}
+    def comments(self):
+        return db.session.query(Comment).filter(Post.author_id==self.id).all()
+    def topics(self):
+        return db.session.query(Topic).filter(Post.author_id==self.id).all()
+    def programs(self):
+        return db.session.query(Program).filter(Post.author_id==self.id).all()
 
     # Other fields populated automatically through relations:
     #   <notifications>   List of unseen notifications (of type Notification)
@@ -129,7 +141,7 @@ class Member(User):
         self.email_confirmed = not V5Config.ENABLE_EMAIL_CONFIRMATION
         if not V5Config.USE_LDAP:
             self.set_password(password)
-        # Workflow with LDAP enabled is User → Postgresql → LDAP → set password
+        # Workflow with LDAP enabled is User → PostgreSQL → LDAP → set password
         self.xp = 0
 
         self.theme = 'default_theme'
@@ -149,23 +161,23 @@ class Member(User):
         Transfers all the posts to another user. This is generally used to
         transfer ownership to a newly-created Guest before deleting an account.
         """
-        for t in self.topics:
+        for t in self.topics():
             t.author = other
             db.session.add(t)
-        for p in self.programs:
+        for p in self.programs():
             p.author = other
             db.session.add(p)
-        for c in self.comments:
+        for c in self.comments():
             c.author = other
             db.session.add(c)
 
     def delete_posts(self):
         """Deletes the user's posts."""
-        for t in self.topics:
+        for t in self.topics():
             t.delete()
-        for p in self.programs:
+        for p in self.programs():
             p.delete()
-        for c in self.comments:
+        for c in self.comments():
             c.delete()
 
     def delete(self):
@@ -450,7 +462,7 @@ class Member(User):
             progress(levels, post_count)
 
         if context in ["new-program", None]:
-            program_count = len(self.programs)
+            program_count = len(self.programs())
 
             levels = {
                 5:  "Programmeur du dimanche",
diff --git a/app/routes/admin/account.py b/app/routes/admin/account.py
index 3cd065f..3cf49d5 100644
--- a/app/routes/admin/account.py
+++ b/app/routes/admin/account.py
@@ -128,9 +128,9 @@ def adm_delete_account(user_id):
 
     # TODO: Number of comments by *other* members which will be deleted
     stats = {
-        'comments': len(user.comments),
-        'topics':   len(user.topics),
-        'programs': len(user.programs),
+        'comments': len(user.comments()),
+        'topics':   len(user.topics()),
+        'programs': len(user.programs()),
         'groups':   len(user.groups),
         'privs':    len(user.special_privileges()),
     }
diff --git a/app/templates/account/user.html b/app/templates/account/user.html
index 1df1a06..4db27fc 100644
--- a/app/templates/account/user.html
+++ b/app/templates/account/user.html
@@ -68,7 +68,7 @@
         <th>Forum</th>
         <th>Création</th>
       </tr>
-    {% for t in member.topics %}
+    {% for t in member.topics() %}
       <tr>
         <td><a href="{{ url_for('forum_topic', f=t.forum, page=(t, 1)) }}">{{ t.title }}</a></td>
         <td><a href="{{ url_for('forum_page', f=t.forum) }}">{{ t.forum.name }}</a></td>
diff --git a/app/templates/admin/delete_account.html b/app/templates/admin/delete_account.html
index a22b3be..4bd6fa1 100644
--- a/app/templates/admin/delete_account.html
+++ b/app/templates/admin/delete_account.html
@@ -11,7 +11,7 @@
 	<ul>
 		<li>{{ stats.comments }} commentaire{{ stats.comments | pluralize }}</li>
 		<li>{{ stats.topics }} topic{{ stats.topics | pluralize }}</li>
-		<li>{{ stats.programs }} topic{{ stats.programs | pluralize }}</li>
+		<li>{{ stats.programs }} programme{{ stats.programs | pluralize }}</li>
 	</ul>
 	<p>Les propriétés suivantes seront supprimées :</p>
 	<ul>