1.) Early in the morning

2.) If you insult their friends

3.) If you make annoying noises just to bother people (especially if it's during class)

4.) If you make judgements about other people

5.) If you abandon Hufflepuff and hang out with other friends

6.) If you do a task really wrong (or really slow)

7.) If you're inconsiderate to others (like expecting someone else to clean up after you)