The mysterious extra charges on your credit card really bother me. They always ask when you check out if you used the minibar. I always say no, because I never use them -- never, never, never. Then a few days later, they just go ahead and charge my credit card without notifying me or questioning the discrepancy between what I already told them -- that is, no minibar usage -- and what they decided is the truth. I have had these bogus charges appear on a Marriott gift card, which is a debit card without a statement. Only by checking my remaining balance did I happen to discover what had happened.
Bruce