My main barrel horse lately has forgotten what WHOA means. So I am not letting her even put a eye on a barrel until she is refreshed and stopping. She rides in a 3 piece argentine snaffle and runs in it to. I also put some training forks on her when we jog barrels and when we are doing refresh courses. Yesterday was horrible! After she didn't want to stop when I was walking the pattern and stopping at the barrels she just tried to keep walking. So I took her and we were doing rollbacks in the roundpen at a trot and lope then I took her out an loped to a fence and asked her to stop.. She just started walking till she hit the fence when I asked her to stop. Also, on the ground she won't back up for nothing. I push and grab her chest, pull on the lead, I stand in front of her and wiggle the lead , bump it. She never backs!!!!