All ideas with Serpent as a contributor

Eating too much food can give you a ‘hiccuping’ intrinsic, where you sporadically hiccup and wake up monsters. Drinking more than two potions of booze in quick succession can also do this. You can cure the intrinsic by drinking a fizzy potion.

Pets’ closeness to the player should correlate with higher tameness, so that if you’d prefer it stay a little farther away you can deliberately decrease its tameness or vice versa.