Visited a friend and the mom was.. well uh..

So i visited my friend yesterday, cuz our moms are friends. We were eating and my friend(lets call them X) went to the bathroom. I told my mom 'guess which artist im going to make a poster of tomorrow?' she guessed it wrong and i was like 'its kurt cobain(also nirvana but shhh)' the mom from x looked at me and was like "its scientifically proven that people that listen to nirvana have depression! Every depressed person i know listens to nirvana!!!" Maybe its their coping mechanism?? So and then the mom said that john lennons death was deserved and stuff(i cry about the beatles) and then nshe started mocking my, my mom did nothing??? I just waited till x got out of the bathroom and ran to tghe bathroom and started crying quietly :(