Fruit flies in my room...
Not a ton of them... but I have killed 5 in the last few days.
I keep no food in my room, however I do eat in here sometimes. I usually always clean it up right after.
Ugh its annoying...
I think it might be the old roomate. The place was clean when I came in, but I know of a dozen ways to sabotage a new place on your way out.