I also pee right in nearby scrapes, on purpose. I've never seen anything but positive results.
Here's what deer do NOT like the smell of...scented shaving cream, deoderant soap (Irish Spring style), aftershave, cologne, minty toothpaste, scented shampoo, fresh scent laundry det, spring fresh dryer sheets, gasoline on boots, carpet freshener on boots, anything close then on your hands/on your boots/pant legs, etc.
If the wind if right, chew or a cigarette won't bother them. If the wind is wrong, I've heard both that sometimes they don't bother deer and sometmes deer fall over themselves getting out of there.
My persnal experience is, cherry skoal doesn't bother them. Wintergreen or mint does.
However, there are always exeptions. A few years back, I was chainsawing multiple long shooting lanes for a rifle blind, alone. I'd cut some, go sit in the blind, look, mentally mark trees, walk back, cut more, etc. Well, after about 1/2 hour of this, I made a cut, walked back to the blind and sat down. I bent down to grab a water I had on the ground, looked back up and a 6pt was standing right in my new lane, smelling the chainsaw I left there. Needless to say, the buck didn't give a rip, ate a couple fresh cut leaves and slowly walked off.
Now, starving deer in the dead of winter are known to do this, but this was in lush august. Go figure.