In the hotel, the bathroom can't be opened, and there is no telephone in the bathroom, so it is impossible to contact the outside world. What should I do?

1. If you have the patience to wait until the waiter cleans the room and you call for help, they must clean the bathroom.

If you are really in a hurry, just push the door hard and knock it open. Theoretically, it can be installed as long as it is not an iron gate.

If you are weak, plug the floor drain and create a flood, and passers-by will always find it.