Hmmm due to one guy huh? Haha, what, is this guy a hardass or something? Is everyone scared of him? It's not that hard to turn people down, and shit, it's almost instinctive for me if it's someone I don't know and I get a sketchy vibe from them. Sure you don't want to piss anyone off, but hell, in the end, you paid for the weed, so you should decide if you don't want to smoke with complete strangers who feel like they somehow know you after you whipped out a fat sack. Anyone that does that around my friends usually gets verbally maimed and don't show their face 'round us no more.