You didn't call them lazy, only judged them to be substance abusers and called them mentally ill, so is that from personal experience that you make such statements that homeless people are substance abusers and or suffer from mental illness? I not only didn't call them lazy I struck a conversation with a sarcastic remark constructed from your obvious prejudices towards homeless people, which you still didn't explain why security guards ARENT mentally ill and abuse substances or why that stops homeless people to be a mentally ill substance abusing security guard, but I called homeless people lazy because sarcasm isn't obvious and you extend mountains of empathy and tender loving care to them when you said they will purge themselves.

Hey, but you can speak of their determination and motivation or lack there of to be a security guard, because if they wanted to be a security guard they can. Especially if they're homeless, right?