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•The reason there are no clocks and windows at casinos are because they don't want to let the users leave !Plus they often give free drinks to make your judgement bad and lavender of ofc Making you drowsy .
•If you want to eat or to go to restroom or to even cash out your Chips , you have to go deeper and which actually means , go through more games , that one last game makes people loose a lot of money.
•Casinos are designed like a maze so that the user might face problems in finding the EXIT , so you will play more ~
That's true they want you to stay longer because you cannot keep up with winnings you maybe good at the start but as the hours go by, you may not some tiredness but some of your judgement in playing will be clouded, making you lose more, they know how to psyche you and estimate your capability, because you are playing in their turf.