At least this brownie explains Walden's behavior. It's not baked with the usual ingrdients.
It's a surprise party for Alan. Maybe this will help him get over a break up.

Two and a Half Men Season 9 Episode 5 Quotes

Alcohol is just a bandage for the problem. I know this because I used to live with the mummy.


Lyndsey: I'm so full it'd be like sticking a pin in a balloon.
Alan: Can we please not call it a pin?