I don't know that I would say that deerget used to your scent. They patteren it. Big difference. Try standing around that feeder after it goes off, or after you've filled it, and see if they'll just come browse around eating with you standing there. I'm thinking not. What your saying also goes for the sound ofa feeder. They hear it, it must be dinner time. Deer will patteren human scent.Scent up their trails, they make new ones.As AF Hunter has said, I've been on an ATV or tractor and had them just stare at me. Minute I got off, away they go. I put my house on my fifty acres this spring. Where I cleared was a big deer run. They've moved 50 yards off the clearing in the woods. It's not that they're used to the scent, they've patterned it. Do you think a deer gets used the the smell of a bear? Of coarse not. They don't look at humans any different than bears. We're all preditors in their brains.