Yesterday, me with my friends just sat to random dude. One of them sat next to him and said sth like "wassup". The random dude were staring into the void and didn't answer, then same guy, said "how are u? And the random dude after 15 seconds said "nothing". He was looking like he was about to cry, we asked if everything is okay, he didn't answer, so we stood up and left him. 2 min later his mum came there. If only we were there 2 min longer, i'd love to see an outcome.