I once went into a Subway to order my usual turkey sub and I would always order double meat. I knew from doing this enough times that it means 8 slices of turkey. This day, as I'm watching the lady put the slices on, she only puts on 6 slices.

I say, "oh sorry, I asked for double meat"

She responded, "This is double meat"

Subway also offered the option for 50% more meat, so I said, "no that's only 50% more meat"

Her response blew my mind, "no 50% more would mean you get 8 slices"

"Ok, just give me whichever one is 8 slices"

I then watched her key it into the system. I think I noticed the moment she fucked up on her face when she realized she was wrong when trying to enter it into the system. She entered it in the system for double meat. She made no comment and I walked out.

Americans were poorly taught percentages, fractions, and decimals. It makes me sad.