If you look through the list of sites where I've had to reset the password, it's invariably the ones that try to impose a 'one of everything' rule. I guess I could learn to try 'expected password' and 'expected password plus this particular special character' before giving up, but normally it's try the password, try it again more slowly and carefully, then give up before the third failure locks the account.
Biting the hand that feeds IT
