If the kitchen problems are not even addressed by the waiter after you bring it to their attention, that invokes my death penalty tip calculation.
I’ve only used it twice. Once I got an alumium shard in my gnocchi at “Pasta?” The waiter only offered to bring me another dish. Um, no thanks and if you’re not even going to offer to get the manager for me, then I can’t be bothered paying you for your complete lack of service. I now know how they got the “?” in their name, LOL.
My only other death penalty case was at a Charlie Brown’s where the waiter disappeared for an hour, then brought us our food cold after one of us got up from the table to look for him. I actually deducted money from the food total, writing it as a negative amount on the tip line. If the manager bothered to talk to me, which he didn’t, I was going to tell him it was that, or he could zero out the bill when I complained to the credit card company, and that I would describe my experience on Yelp.
Normally I’m a nice guy...if I had any friends, you could ask them.
THAT, sir, is a future tag line.