Re-ButtalG 20

Somewhat glitchy and missable. I had interrupted 9-10 channel attacks with farts, and my tracker only showed 4. Few enemies use channel attacks so this can be missed. The Hallway Monitor boss, the Underpants Gnomes (not the warlock), and Craig and his clones use channel attacks. The Underpants Gnomes channel most frequently, so the best approach is to interrupt any channel attacks that the Hallway Monitor uses just to get a head start, make a save on the 2nd night right after leaving the wall (right when you'd be watching your parents have sex for the "Perverted" achievement), and do your best to farm these from the Gnomes by letting attacks miss, and spamming mana and health potions to keep you alive long enough to let them channel. If more than one gnome is channeling, you can also use a speed potion to attack twice and interrupt them both.