I like the idea of tipping based on time at the table if you need some metric to go by. Which also usually means a bigger tip at a more expensive restaurant bec

I like the idea of tipping based on time at the table if you need some metric to go by. Which also usually means a bigger tip at a more expensive restaurant because you usually stick around for longer. But at least if you take 20 minutes to eat at a cheap place and 20 minutes at a pricey place you could pay the same tip.