Originally Posted by LesterOfPuppets

Hmm, so it popped out of the barrel adjuster on the lever? Sometimes people setup the brakes with the housing not in all the way and that will leave the cable way too loose.

Sometimes the housing can get pulled out of the adjuster when loading into a car, or after a crash, etc. Typically if the brakes are adjusted properly and THEN the housing gets pulled out of adjuster, that'll have the brakes locked up, however.