It was on r/thathappend and the comments explaining got locked though. But if I remember correctly it was the handwriting being the same as one in another one of his posts
if some arse asked me for a gum every day, not only i wouldn't fucking give it to him (gum is expensive, hellloooo), i 100% wouldn't give him MORE gum as a parting gift. if you want gum, fricking bring your own.
...ugh I know it's fake