Well, it's a change from posts of people clipping nails or barefoot on seat photos which were popular while ago. At least in this sub, you can get onboard passenger reports then make an irrelevant comment such as this one. Most people are probably immune to the unusual goings on in Sydney Trains carriages as they travel along. Haven't caught a Sydney Train since pre covid times but this sort of stuff was not uncommon on some lines and if you are 1-2 hours per day commuting on a train 5 days a week you will see some annoying stuff. But sharps disposal is free, it's a shame this person (assumingly) injected while travelling on the train then didn't dispose of the needle properly. Top comment marking them as a junkie has most updoots I find it generalizing and not focusing on underlying structure, health issues or individual life circumstances and fanily (or lack thereof) which may lead people to become substance addicted. Have some empathy for the "junkies" and their struggles with mental health, poverty and addiction.