Being fierce and intimidating is one thing, but am I the only one who has watched Burfict play? He typically takes it too far and throws punches, chokes linemen, headbutts QBs, pushes his own players, disregards coaches, etc.
He got a personal foul in the 4th qtr of one game that cost his team huge, coaches sent someone in to take him out and he refused. Just stood there, stared back at the coaches like "what are you gonna do?". That's not who I want on my team.