[Chief Rum]

Exactly. The way to deal with bad food is to tell your waiter and he will either get it fixed or discount it or get a manager, which is his job. If it's not fixed to your satisfaction but the waiter did everything within his power to fix it, then I don't think you should punish the waiter for that. Leave an appropriate tip and either don't go back to the restaurant, or go a lot less often (or give them a bad Yelp review).