A trail cam, although I do not use them, have many valuable uses. This device is nothing but a device to cover for an inability. If you say a deer has never snuck up on you, how do you know?
If you hunt much, especially bowhunt and in places besides wide open plains, it has happened to you. You may not know it, but it has. And as you get older, it will happen more often as your hearing and eyesight begin to decrease. I hunt most of the time in really thick stuff. From most of my stands, it is hard to see 30-yards. Happens to me all the time. Most of the time, I get a chuckle out of it. Sometimes, it freaks me out.