Very good points Happy. Hunting into the wind is very important. Also keeping your sheds clear of human odor is also a key. I had my buddy's hide the sheds from time to time but that wasnt always convenient. Maybe because i use thed shed cutouts to train my dog it kept his head up looking at the cutout but at the same time using his nose to smell the shed. I did use gloves when i handled the shed, and washed them after 2 training sessions. I also used the wax and put it on the shed cutouts to put out more scent. Thats an interesting story though. Something to deffinately think about!