I've broken my roommates bong, however I did pay for it, which is what you should do when you break something belonging to someone else. He was actually happier in the end because he likes his new bong better lol.

Dusto, please tell me that your roommate is gonna buy you a new one. Even if I didn't have the money at the time, I would still pay him back over time, if that's the case with your roommate, he should do the same.