diff --git a/judge/tasks/experiment.py b/judge/tasks/experiment.py
index 12ea1ca..7867170 100644
--- a/judge/tasks/experiment.py
+++ b/judge/tasks/experiment.py
@@ -1,6 +1,10 @@
-from collections import defaultdict
-from judge.models import SubmissionTestCase, Problem
+from django.contrib.auth.models import User
+from django.conf import settings
 
+from judge.models import SubmissionTestCase, Problem, Profile, Language, Organization
+
+from collections import defaultdict
+import csv
 
 def generate_report(problem):
     testcases = SubmissionTestCase.objects.filter(submission__problem=problem).all()
@@ -19,6 +23,38 @@ def generate_report(problem):
     for i, _ in sorted(rate.items(), key=lambda x: x[1], reverse=True):
         print(i, score[i], total[i], rate[i])
 
-def test(code):
-    problem = Problem.objects.get(code=code)
-    generate_report(problem)
\ No newline at end of file
+
+def import_users(csv_file):
+    # 1st row: username, password, organization
+    # ... row: a_username,passhere,organ
+    try:
+        f = open(csv_file, 'r')
+    except OSError:
+        print("Could not open csv file", csv_file)
+        return
+
+    with f:
+        reader = csv.DictReader(f)
+
+        for row in reader:
+            username = row['username']
+            pwd = row['password']
+
+            user, _ = User.objects.get_or_create(username=username, defaults={
+                'is_active': True,
+            })
+
+            profile, _ = Profile.objects.get_or_create(user=user, defaults={
+                'language': Language.get_python3(),
+                'timezone': settings.DEFAULT_USER_TIME_ZONE,
+            })
+
+            if pwd:
+                user.set_password(pwd)
+            
+            if 'organization' in row.keys() and row['organization']:
+                org = Organization.objects.get(name=row['organization'])
+                profile.organizations.add(org)
+
+            user.save()
+            profile.save()
diff --git a/judge/views/problem.py b/judge/views/problem.py
index e5ba33c..a366ef5 100644
--- a/judge/views/problem.py
+++ b/judge/views/problem.py
@@ -541,7 +541,7 @@ def problem_submit(request, problem, submission=None):
         if request.method == 'POST':
             user_logger.info('Naughty user %s wants to submit to %s without permission',
                              request.user.username, problem.code)
-            return HttpResponseForbidden('<h1>Do you want me to ban you?</h1>')
+            return HttpResponseForbidden('<h1>Not allowed to submit. Try later.</h1>')
         raise Http404()
 
     if problem.is_editable_by(request.user):