Well
I thought this was interesting:
No timeouts are allowed, but a player may take one toilet break. They may only leave the table at the end of a rack that they have won. This break should be as brief as possible. Should you require a further break during the match then you must obtain permission from the Duty Referee or the Control Desk. Failure to observe these rules will mean FORFEIT of the next rack with the break passing back to the opponent.
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This is for the qualifiers above. What if you don't win a game, and still have to pee? .... lol