I've got a coming 2 year old bull that has figured out how to pop his halter off if he rubs it the right way. We're taking him to Agribition next week, and the last thing I want to do is run around Regina after a big bull. We've tried running a zip tie through the knot, and that doesn't seem to do it. Any other ideas? Or should I just give JIT a head's up now so he knows who the bull visiting his stall every night belongs to.