history: Somehow I had a fruit fly infestation in my apartment the other day. I think it's because I had some old vegetables I didn't throw away. It was gross.
current: A bunch of fruit flies appeared in my apartment out of nowhere the other day. I think it's because of some old veggies in my fridge. Totally gross.
next: Oh man, those things are awful and reproduce like crazy.  We left our house for a week and came back to tons of them everywhere! The best trick is putting a little apple cider vinegar in a jar, a drop of dish soap on top of that and cover it with cling wrap and put holes in it.  They will gravitate toward it and you'll catch a bunch! Just keep changing it every few days.