I never "scan" with a scope, but I will frequently will put the scope on an animal I am considering shooting. I have watched deer for well over an hour on multiple occasions either waiting for them to turn to just the right position or just to decide if it looks tasty enough to shoot. Probably the latter has been most common for me since I shoot strictly for my table. Where I hunt, there have been way more deer than is reasonable for the better part of 20 years, so I get to pick and choose. This results in looking very closely for identifying characteristics so I can quickly decide I have seen and passed on this one before.
