It makes perfect sense, why wouldn't anyone go through the trouble of doing this? OH I see you feel more comfortable carrying around animal urine than your own wifes/girfriends/daughters ECt. ok daughters is a little nasty but, other than that estrogen is estrogen. Once the bottled deer urine makes it to you it is so tampered with and all the good stuff is partially evaporated............ useless! Lets get it fresh folks, everyday I see people pay 39.99 for code blue standing estrous, I have standing estrous and more for free..........standing right in my living room talking to me thinking I am listening.