Bob is a cribber. I dont put a collar on him. It makes him mad, and he cribs more when he is mad.

Make sure he is UTD on floating, plenty of turnout in larger pasture preferably, keep him on free choice hay to keep him busy and happy, put up a string of electric on the top board of the fencing, spray wraplast on his favourite spots.

It is possible to overtighten collars.