Possum Shifting

[Citroënbender]

I need to persuade a possum to leave it's roost in my garage pretty much within the next 24 hours - it's occupying some items I want to remove.

Not interested in killing or injuring, just want it to shift. So - guns, knives, flamethrowers, spears, capsicum spray and Leopard tanks are out. I've tried disturbing the items and that seems to have made it more resolute in staying. Having been bitten and scratched by possums before, I'm not in a hurry to bring about physical confrontation.

So, yes, suggestions requested please.