They also try to drive to canada with their guns, and believe they can't be "foreigners" because they're american. 30% of americans are functionally illiterate, no surprise really.

https://immigration.ca/americans-frequently-caught-bringing-...

Yes.

Everyone has a story about being stuck behind an irate American who can't understand why their currency isn't accepted abroad.

I've seen it in the UK - when a tourist tried to leave a tip in dollars for a bemused waiter.