Sitting in my bow stand the other evening and a nice 8 that I had been looking for came in, but to my dismay, his entire right side antler had been broken off right below the brow tine. Damn it. Anyhow, he hung around for about a half hour, until shooting light was done. Well, my cell phone helps me pass the time and I've always been paranoid about the brightness reflecting or shining and spooking a deer . So, I pulled my phone out and for 15 minutes or so, flashed it at this buck with different brightness settings. He never even looked up.