giving dog energy pills???

i talkeed to a friend of mine who is really into field trialing walker dogs and he has tried just about everything there is out there ( legal and illegal) to give them the egde and the best thing he found to give his dogs that extra edge over the competition was a concoction of good honest genetics ands LOTS of time running to maintain shape and culling and before long he was onto something now he is tough to beat in the puppy derbys....i even tried the monster energy drink with a few of my dogs twice and yea it give them that extra kick and they hunted harder but im not into to hunting juiced dogs and when the energy high wore off they crashed