Mother humper!
I’ve had black flies in the house for days! First, where the hell did they come from? They just sort of appeared. Secondly, it’s below freezing outside at night. It’s a bit cold for flies. I must have killed a dozen of them. There’s no food out, and I take out the trash regularly. And where are my spiders? I catch them and take them outside all the time. But when you need them? They’re gone!