Watch: Raiders' Penn dares confrontational fans to throw down

Warning: Video contains coarse language

You wouldn't like Donald Penn when he's angry.

As if Sunday's loss to the Baltimore Ravens wasn't enough to deal with, the Oakland Raiders left tackle had to put some confrontational fans in their place as he was leaving the Oakland Coliseum.

The instigators chided Penn and repeatedly called him "21 mill" - an apparent, if erroneous, reference to the two-year extension he signed earlier this year - prompting the lineman to exit his car and challenge the misfits to throw down right there.

With security standing between he and the disgruntled fans, Penn ultimately proved to be the cooler head and spared his detractors what - in all likelihood - would have been a traumatic beating.