RE: Sneak attack!
A bird has to do/be one of two things for me personally to shoot it:
1) He has to put on a good show. That means lots of gobbling, responding well, maybe going the extra distance to get to me. That doesn't mean (for me) sniping one after a belly crawl. No more so than potting one with a 22-250 from the passenger seat of the truck.
2) He has to be flat out HUGE and be a turkey that has personally gotten the better of me before. This has only been the case three times, and I only came out on top once. Field turkey's usually get this treatment.
I have no problem ambushing one at a water hole or a food source though.