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.
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Went up stairs to take my laundry too my room, the only light that was on was the ceiling light in the downstairs living room so I could kind of see well enough. I dropped off the laundry in my room and headed back down the stairs, I randomly decided to place my poor little hand on the railing and just my luck I touch a very large stink bug with my palm. I screamed as loud as a squeaker getting his first ballerhorn and fell down the rest of the stairs finally hitting a wall. That dumb stink bug died a fiery death in the living room ceiling light.