Consider yourselves warned, How I Met Your Mother fans: you'll be seeing a whole new side to Barney Stinson on Monday night.

Tame. Whipped. Considerate. Scared. Quinn will change our favorite suited stud for the worse on "The Broath," giving the gang no choice but to break the couple up. If they can.

Check out the official CBS promo for the episode now and be afraid. Be very afraid...

Matt Richenthal is the Editor in Chief of TV Fanatic. Follow him on Twitter and on Google+.