Make him eat pissy vegetables, then see if he changes his attitude.

On the bright side, water that goes down the drain doesn’t come back out, so at least it’s only part of the sink that’s gross...

He should know that you never tell someone that, what made him bring it up?

You need to slap his ass and parent him. At least make him use a 2 liter coke bottle (let me guess, he does the Dew?) that he empties daily and not stash under his computer desk! I had a Trans-female roommate from hell that did the coke bottle under the desk stunt. I get lazy but never lazy like about bodily functions!

You should have held your fire until you caught him pooping in the sink. Yes, pee is distasteful, but it easily rinses away whereas feces are a biohazard.

I hear pee and carrots are good for you.

I really hope he never clogged your sink

do you not wash your sink out before you put food in there?

What did you raise?

So, wash his food in the toilet and see how he feels about that.