That's a drinking game for Urusei Yatsura, datcha:
- Take a sip when Lum says "datcha" (or "-tcha") at the end of a sentence, tcha.
- Alternative (if you want to live): Take a sip when she doesn't say "datcha" (or "-tcha") at the end of a sentence, tcha.
- Take a sip when she says "darling."
- Take two when she calls her darling "baka."
- Take a sip when the principal enjoys tea with Kotatsu-neko.
- Take a sip when Cherry says "'Tis fate."
- Take a sip for every fight between Ataru and Ten.
- Take a sip when females are harassed by Ataru.
- Take a sip when Ryuunosuke's father insists that she's a boy.
- Take two when someone else thinks she's a boy.
- Take a sip when he says how much he loves the sea.
- Take a sip when Megane's hammy.
- Take a sip when Mendou uses his sword.
- Take a sip when one of his phobias kicks in.
- Take a sip when his private army is deployed.
- Take two when they're Putting on the Reich.
- Take a sip whenever girls are pining after him.
- Take a sip when Shinobu displays superhuman strength.
- Take a sip when Ten breaths fire.
- Take a sip when Lum uses her electric powers.
- Take a sip when Ran appears to be a sweet and lovely redhead.
- Take a sip when Ran shows her violent, evil side.
- Take a sip for every switch between these personalities.
- Take a sip when Rei's hungry.
- Take a sip when Sakura or Cherry try to exorcise evil spirits.
- Take a sip when Dappya (fish people in a space suit) appear.
- Take a sip when Onsen-Mark is abused or beaten up by Ataru or other students.
- Take a sip when the classroom is destroyed.
- Take a sip when someone is hit with a mallet.
After one of these drinking games you're drunk. 'Tis fate.