i will only accept a "pet the cat" mechanic in a game if you have a 10% chance of petting the cat Wrong and they claw the shit out of your character's hand for 1d6 damage

i will only accept a "pet the cat" mechanic in a game if you have a 10% chance of petting the cat Wrong and they claw the shit out of your character's hand for 1d6 damage
Each cat in the game has a secret 10-50% modifier that's rolled at the start of the game depending on how much of a jerk they are.
Not RNG but Chained Echoes had a whole system for whether a cat reacted positively or negatively to your petting attempt, forget exactly how it worked (looked it up at the time)...
for realism there should be a separate roll with a 10% chance that you pet the cat right but they’re Just Not Feeling It anyway and your bond with the cat is reduced by 1d6