Mono can’t eat art supplies without getting ill. Anything that isn’t sugary, his body purges because it’s incompatible with his system. However, anytime he gets sick, he purges large amounts of his ink along with whatever he’d managed to swallow…
If he purges enough in a short amount of time, he will get ‘drunk’ from ink loss.
He gets very, very giggly and affectionate when he’s drunk.
And he screams… A lot. For, like, no reason. He just likes to make noise.