They may eventually admit they know it's technically correct, but you take your life in your hands if you try telling a Canadian that they are "American." Well, not your life, but they'll probably stop talking to you for a little while.
I think it's not just how much gold one has, but whether it can be categorized as a "horde." You may only have a small amount of gold coins, but if you leave them in a messy--but not too messy--pile, you could end up with a small dragon sleeping on top of it.
I've often thought it'd be fun to let a party have a tame mimic as a pet. Not helpful in battle unfortunately, unless one of your opponents decides to take a looting break.
The laws of robotics: