We don't sell additional chips from the bank. If a player runs out of chips during a hand and is unwilling to buy additional chips from another player, the player may remain until showdown while the other players contribute their subsequent chips to a side pot. The player who ran out chips continues to receive cards and can win the main pot but cannot win anything in the side pot. A tie is a tie. We don't break it by referring to the number of wildcards used or by the value of some other card in each players' possession.
Cards speak for themselves.
If a player has the best cards showing at the showdown, they win, even if they were confused and mistakenly claimed to have something else. Players surviving to the showdown need not show their hands, but they should, given the generosity of the cards speak rule. In games where the low hole card is wild, the player may choose whether to treat a hole ace as high or low. At any point before the showdown, the players involved in the pot may split the pot amongst themselves as they see fit. If anyone player still involved in the pot objects, the game continues to the showdown.