I remember the first time I passed through the border, I was pretty nervous lol. I was sure I would get randomly selected for inspection or something.
Also, I remember there was a rich boy (ironic, I know) who's father gave him his credit card so he could spend it on whatever, I don't know what they were thinking because a) the dude couldn't speak english (I had to translate to the cashier) and b) he couldn't use the credit card anyways since he wasn't the owner, afaik he couldn't buy anything during the whole trip because he didn't bring any cash.