I watched a buck Sneak behind a guy that was walking near my stand.
he was damn near belly crawling through the multiflora rose. every once and a while his antlers would get cought up and he would just kinda slowly move his head around till they were free. IT WAS REALLY NEAT
i have also seen a decent 2.5yr old eight sneak away when this monster 8 came into the area...
pinned his ears back, bent his legs and put his head down and slipped out. big boy never saw him.

does do have a distinctive walk. I think you can usually tell a difference.