i asked this question 2 years ago on here. i had for years peed in a bottle and was suprised when i asked the question all most everyone said that deer can not tell one urine from another. i am very stubburn in breaking habits that work for me as i allways had used the bottle but it really is a pain in the ass to use 1 as i go around 6-7 times a hunt, week bladder. after i posted and got all the responses i thought i would give it a shot and see what happens. let me tell ya i was floored with the results i have had over this 2 year experiment! i have not had a deer spoke yet ( that i know of ) becouse of peeing from my stand. i have had deer pop out and walk right by it right after i went. none yet ( that i saw ) spooked. many stopped and sniffed and many spooked becouse they winded me but the urine did not affect them. go ahead and try it yourself i think you will be suprised. by the way i am a DIE HARD coffee drinker and drink a lot of it. the coffee smell does not seem to affect them either which suprised me as i could smell it myself. this is just my findings from what i have done, hopefully more people will chime in as i would like to hear what they think or what they have tried.