A childhood belief about monsters

When you are riding an escalator, look carefully when you're at the very bottom and there is a flash of greenish light.

I used to believe that magic alligators lived under the escalator. They kept it going around, and were basically friendly creatures, unless you failed to jump as you got off the escalator. Then, they might come up out of there and bite your feet.

I tell my 3 year old kid now that there's alligators under there. He says hi to them every time.