I always tipped heavy, and early in my poker journey, it saved my butt several times.
Once I was playing 10/20 limit in a room where the rules were, if you show your hand, it’s dead, and if two people were left in the hand, they could raise back and forth until a party was all in.
On the river, my opponent had the nut full house, and I had quads. We went back and forth and agreed to just go all in, and the dealer started counting down opponent’s chips. I easily had him covered, so I said “it doesn’t matter, I have quads (and rolled out my hand) I call.”
My opponent immediately protested and said “HIS HAND IS DEAD” (which, truthfully, the way things played out, he was right)
The dealer called the floor over, explained the hand, but kindly told the floor (about me) “as he said ‘call’ he rolled out his hand”…I was awarded the pot…and as a 19 year old kid, I gladly collected the pot.
I had tipped a decent amount previous to this hand, and tipped a BUNCH after the pot was pushed to me, but it really taught me just how much power the dealer and the floor have…
I have several stories where the dealer saved my butt because I did something dumb. Another time my opponent declared an incorrect hand (intentionally in an effort to make me muck) and I pushed my hand forward face down, but the dealer never touched my cards. The dealer just glared at me to show my hand. So I took the hint, rolled out, and turned out my opponent had complete air.
Ok. I’m done ranting. (Sorry, I’m drinking)
I over tip and have always been polite to the dealers. And it’s saved me more than once