An old friend of mine that I used to shoot indoor archery matches with used to smoke cigars while he was in stand...he took one of the most impressive non-typical, HEAVY chocolate racks I've ever even seen pictures of about 3yrs ago, he admitted that he had about given up on the hunt and had stood up, pee'd out of the stand, and had just lit a fresh cigar when the buck walked out on the field....

Their noses are good, but no matter how good they are, they can't smell it if there's nothing there to smell...keep the wind in your face and you've got nothing to worry about.