I have called in 20 or so over the years. About half have come charging in to the call, The others a bit more wily about coming in, but still come. Had one a few years ago that I could see with one antler and one eye sticking out from behind a tree about 80 meters away watching for where the call was coming from for 10 minutes before it ventured down the hill. You have to watch for them sneaking round behind you as well. But when they charge, they charge. I've had them in at 10 yds on more than one occasion - and very ****ed off. When they give it the full on charge you know all about it- thought they would go straight through me on a couple of occasions. Without doubt the biggest adrenaline rush UK stalking can offer - but it's all over pretty quickly.