How the Casino Protects
Its Credit Bankroll
If he answers affirmatively, the cashier will call the pit to find out what happened and then ask the player to redeem his marker. If there aren't enough chips to redeem it, the cashier will give him cash, but the next time he does this, the player will be asked to stay around, and the credit manager or someone in authority will speak to him, asking why he's doing this. If they get no satisfactory answer, the player's future credit may be cut off. The casino will take this kind of strong measure because it knows it's being taken advantage of by the player, and it doesn't want to wait months for its money to be paid back.
The same thing can occur when a player table-hops under the pretense of playing or giving action at several tables. For example, a player goes to Craps 1 and takes out a marker for $1,000, then goes to Craps 2 after a few minutes and plays for a few minutes there, then goes to Craps 3 and takes out another marker for $1,000, and then walks back to the cashier's cage to cash in his chips.
He won't be fooling anyone, not if the casino has an alert staff on the floor. Some players may get away with this scam in a crowded and poorly supervised casino, but for the most the part, casinos will not allow this to happen with junketeers or players with big credit lines, not if they think the sole purpose of this move is to use the casino bankroll for the player's own personal use and purposes, free of charge.
The casino can't stop a player from cashing in or leaving table at any time; what they can do is have someone talk to the gambler and explain their rules and tell him his credit might be cut off if he's not giving them action, but simply using their money to build up his own cash reserve.
Now, there are players who table-hop legitimately, who find one table cold and run to another and then another, looking for that one hot table. The casino knows that this happens often and knows that players are superstitious creatures at heart but it doesn't really care about these players as long as the intent is action.
If a player wants to gamble, if he's at the tables primarily to gamble, he can do what he wants to do and run from table to table or around the table three times before each bet if that's his pleasure (I guess I'm exaggerating a bit here). But if he's at the table, signing markers just to get the casino's money into his pocket, without paying interest on it, then he's going to be told abruptly to stop that scam.