That’s a conversation with the business owner though, not a server just trying to get by 

talking about tip pool - I thought about situation where the person receive a tip from a customer and then he/she add it to the tip pool (i.e. tip system based internally on trust)
definitely there are different habits regarding tips in different countries...

jk_14

Absolutely not. Look up how tip pools work. Someone can easily get fired for messing around with it or trying to bypass it etc 

thrown

bitcoin

I decided to offer tip in restaurants only via Lightning Network.

let them all spend a single minute then and split (even better ;)