1. Jeiju in Korea n Moscow/Russia r 2 famous places of cheating:
short deck, dealing the 2nd card....
2. 1 pro. said it could cheat by changing a shoe of short deck
when u go toilet during shuffle,if u play alone.
but 1 time when i played in Moscow, i saw a pit boss touch the played cards in the discard stand without good reason, very unusual action---Shargrila casino, 2002.
i associated/immagined immediately that one can hold a few low cards on hand n then put them into the cards in a second.
so don't think it is honest even though the cards are shown
face up b4 start.
however, beware of Korean n Russian dealer outside Korea/Russia.
hope can help to avoid cheating.