I went to a frozen yogurt shop called Red Mango today with some buddies from my martial arts acade­my.

I’ve been to a Red Mango before in Madison while I was there for university, and it wasn’t much different than any other fast food store – you go up to the counter, look at the menu, ask for what you want, receive it, and pay for it according to the price listed on the menu.

However, the one we went to was different – it was essentially almost all self-service.

I grabbed a cup, and assumed that the cost of the yogurt would be by cup. As a result, I loaded my cup with as much as I could fit inside.

When I went to check out, I realized they don’t charge by cup, they charge by weight.

Mine ended up being almost a pound.