This a question on alot of hog hunters minds at least 10 times in their hogdoggin career! I believe they are feeding the hogs nitrous and jet fuel and when they see a dog they are gone!

Really though depending on how rangy your dogs are when they hit the pig or how fast you can run to the pig the easiest way to fix this problem is a RCD. I like my dogs to shut um down as soon as possible but depending on how much pressure the pigs in the area have felt some will take the best of dogs on a journey! Good luck on your next hunt and getting them hogs stopped!