Mythbusters did an episode about trying to foil a blood hound, when Adam played a convict who tried to make the dog lose his trail. Every trick he did failed like washing, changing clothes, going through water, masking the scent with coffee other scents.
Bears are thought to have the best sense of smell of any animal on earth. For example, the average dog’s sense of smell is 100 times better than a humans. A blood hound’s is 300 times better. A bear’s sense of smell is 7 times better than a blood hound’s or 2,100 times better than a human.
If due to some reason we suddenly gained sense of smell that rivals that of a bear. would our scent be an end of privacy, where everybody could simply smell our recent history (people we hang up with, what we ate, drank)?