To Insure People don't Spit in my food

I once left a dollar tip because the waiter went on break with out telling us or replacing himself so for a solid hour we waited for food. Only reason we waited was if we left we be charged for a no show. I gave him a dollar because after my kid took 1 bite of her food she spilled her drink on to her plate and they removed it and returned with a new one in less than 5 minutes. So 1 dollar lol
Normally if they are rlly good we tip 20%

I tip 15-20 Mattering on the service

*Ensure

Tbh I normally tip based on how nice the server is and how busy the floor may be.

My philosophy is 20% rounded up a dollar or 2 unless service is really bad. I know getting a little extra in a tip just feels good. It's not the money as much as feeling appreciated.