First of all, the lift is in the shaft; not the floor, right? Okay, enough joking around. This photo was taken by a tenant in an apartment building. I wonder if accidents have happened there in the past or if this is just a case of owners trying to cover themselves in case something like this did happen? In any regards, this is the first time I have seen such a sign and probably because this almost never happens. However, it probably wouldn’t be a bad idea to at least giving the old elevator a good look before entering (as we usually do).