When Experimenting, It's Important to Only Change One Variable at a Time

Girlfriend: Hey, do you know I heard down in Brazil they, like, mix sand in with their suntan lotion so that it exfoliates their skin?
Boyfriend: That’s fucking stupid.
Girlfriend: Tell me about it! I tried it last year and got a nasty rash. So this year I’m using sand and baby oil.

–Waikiki Beach, Hawaii

Overheard by: Neeri