Do a search on here... I've written volumes about peeing from stand. The year I killed my 162-class, I finally got an arrow through him on the sixth time I saw him. I regularly pee from my stand.

There's been study after study showing it has no effects on deer. All you're doing by taking a bottle into the woods is bringing an extra noise-maker, something else to take up room in your pack, and opening yourself up to spillage later on.