There are many reasons why lifts may breakdown; Reacting to an emergency breakdown, a lift engineer discovered a problem with the car doors.
On further investigation, he removed the cover from the landing door only to find a snake had found its way into the door lock, well, you can imagine the speed in reaction of the lift engineer to this. All we can say is he would have probably have beat Usain Bolt out the lift car.
In some old mills, Lift engineers will find pigeons, rats, and frogs in lift shafts. So thankfully, in the UK at least, Hissing Sids are very rare but I think after seeing this picture, lift engineers may take quick look removing covers just in case.