Too bad, let's just assume this elevator is a TARDIS, based on the fact there is so much room in here, andf time travel back in time to save the Roman Empire!
FInd a way into the rafters, then hop around tweeting like a bird. Then when someone notices you, say "I'm a bird! Coo coo!" and try to fly off the rafters..
You get nothing, because "insterting" is not an action.
*Inserts me putting a sapper in to sabotage the vending machine, just before lighting it on fire.*