I's been several years ago i also put a drag line out hung it 20 yards down wind of my stand when 5 doe's came in .Four of the doe's never made anything out of it but the lead doe went crazy ,started stomping snorting ran of about 10 yards came back again .Once she got back to where the scent trail was she sniff the ground and went nuts again i mean she was on high allert.Finally she took off snorting like crazy and the other went with her.Thats what happens when you try and fool an old doe it's not going to happen .Shes been around awile so she know somethings not right .