I'll go first (duh)
One time, I was sitting on the toilet doing the doo doo and a spider came from the ceiling right in front of me, I wasn't even done and I didn't have anything to kill it with so I grabbed a stepping stool and smashed it into the ground and killed it.
Now it's your turn.
Edit: Baby Spiders hatched Inside my ceiling fan and invaded my room, needless to say I slept on the couch that day.
-
When I was like six or seven I was playing in a big inflatable pool, and I got my water blaster and dipped it into the pool to fill it. When I did THOUSANDS of earwigs swam out of the tank in the blaster and got everywhere in the pool, including all over me.