When we were on a cruise ship casino playing BlackJack ( 21 ), the casino dealers would tout people into making bad decisions with the hands of cards.
The dealer would strongly suggest splitting a pair of 10’s, double down on a 15, all kinds of bad moves that would be bad for the player.
Amazing how many took the advice and got stung. Often the same people using the loosing Martingale system.
We also felt that the casino was using 'Mechanic" dealers that could manipulate the cards for the house.
One old Jasper came up to my table, and when the dealer touted him into splitting a pair of 10’s. his reply was: “What do we look like, a bunch of Rubes?”.
I’ve herd that term used before and woundered where it came form.