Oh lawd, I have a good one.
Okay, one time, when I was like 6 years old (so around 2005), I wanted to watch the Jungle Book: Mowgli's Story, so I took the tape that was in the Jungle Book box, and stuck it in the VCR. Turns out my mom's boyfriend at the time was watching a ****o tape, and misplaced it in the Jungle Book case. So one thing leads to another, and I end up seeing some woman sucking another guy off. My mom finds me watching it in the living room, and she goes f**king insane. Apparently, when she was hurrying to take the tape out, I asked her "Mommy, why was the lady going like this", and then simulated giving head.
My mom and her friends were f**king dying, and I was just wondering what was so funny. Poor 6-year old me.