Bad smell in your apartment? Why not make it worse with “piss air”? In case you can’t tell, “piss air” is where you fill a jug with urine, put a fan in front of it, then let that ammonia smell permeate throughout your living quarters. It’s perfect if you want to claim territory from your roommate, or if you’re trying to speedrun losing your security deposit.

But if you’re still confused on how to make “piss air,” this guy can help you out with a little tutorial.