Things that make no sense to me:

Braille at the drive-up ATM

People who say that your fake Christmas tree looks so real, or that your real Christmas tree is so perfect, it looks fake

Commenting that the person in the casket looks really good

Non-smoking sections in restaurants- doesn't smoke kind of float around?

Thongs, especially since they're supposedly reusable

When my hygienist asks me how my summer's going while she's scraping away at my molars

Calling a small coffee "Tall" and charging $6.00 for it

People who buy it

Pluto

Apparently size does, in fact, matter.