Jotay, I didn't put the @ in deliberately. It's part of the site's profanity filter and I think you could see why that one might be useful in general.
I hope this guy gets a decent settlement for his unreasonable detainment and public humiliation. It was ridiculous! I have a hard time imagining anyone, much less an entire group of retail employees, not knowing that $2 bills are legal tender. Guess they'll know next time, right?