Haha, amusing. There are locks on the doors of 7-11 because once the store is robbed, it's a crime scene and must be secured. The locks make that a lot easier.

Teflon's slick properties are not so slick when you heat it to the melting point. It's only slick once it has dried (don't know the metallurgical term.)

Drive-up ATM's have braille on them because factories produce as few different parts as possible. It would be more expensive to make 2 molds, one for braille and one without, than it is to just put the braille everywhere.

The ATM and PIN thing is a pet peeve of mine!! Argh!! We have HUBs in my shop (hold-up batteries) and it drives me nuts when people want "HUB Batteries!"

As for the rest, you're on your own