I am engaged in maintenance, you say this situation is very rare, very little, do not know? There is a possibility, that is overload, so advise you not to squeeze the elevator. Normally the elevator will not fall. Even if it is overloaded fall, nor is you imagine the free fall, as the speed will not be very fast. The elevator has a lot of protection devices, even if the same protection device failure, can not fail at the same time, so the elevator is safe, the elevator for more than 100 years, you heard someone in the elevator from falling above the fall of the people? No. The elevator has to kill people, but are not falling when people died in the elevator, dead mostly elevator workers. Belong to the illegal operation, their own play dead. So the elevator failure, do not panic, stay inside do not tamper on the line, no life dangerous. As for the TV on the knees to bend like, no need. Right is immediately by the elevator phone keys, notify the professionals to deal with. Do not arbitrarily Pa door, tamper with the like. If the phone is unreasonable, mobile phone, mobile phone nowhere, pat on the car door, propaganda. Hope to adopt. Thank you