Please consider that your colleague could be put in a position of legal liability, just to satisfy your kink. It is one thing, if a consenting partner or parent takes on that liability, but a co-worker, that could be problematic.
Also if you get harmed during your experiment and it turns out that the keys were locked in a compartment inside your employers office, that could be damaging for the reputation of that company and could make you legally liable.
It of course depends on your local laws, but I assume most jurisdictions have similar laws in that regard!