i personally like the idea of a timeout jumper. many factors can make a mechanic forget they have applied 1, with pressure from a stuck with passenger call to supervisor and building manager pressure. having said that this is where we mechanics have to be assertive and say no we have not finished and when im done i will let you know.also under no circumstance should you short both locks when alone on site no matter what pressure your under. this should only be done via maintenace speed and with your mate on the level of the lift as you would when you have to kick the lift below or above floor levels. this is something that when we had licenses(here in melbourne aus wwe have been deregulated ie no licenses to new mechanic after about '95') that was drummed into us. just on licenses im surprised you guys havent got these as with the level of code oversight i would've thought this would be standard.otis also used to do tool box talks just to remind procedures including these(prob still do).