well not having good hygiene is discusting all the way around. and i am 100% sure that a smoking decreases your chances of harvesting a trophy buck that's for sure. my father has smoked cigarettes in the woods well for.... forever. he always gets a buck but they are always young, maybe a year or two. he has never harvested a trophy buck. don't get me wrong, he has seen them.... but they smell him and high tail out of there before he can get a shot off. i think you should tell your buddy to walk about 200 yards down the road and head into the woods.... this way you can take advantage of his ignorance. that's what i do to my father and he doesn't see a deer all day and my wife and i see a ton of them. for instance this year my wife got her first deer ever which was a 6 point with an 18" spread. my dad was hunting on top of the hill, and we were down in the valley.... he didn't see a deer all season!!!