DAMN! That would pi$$ me off!
Bladder problem? or
Some dogs know they have to go in their crate when mom and dad are going bye bye. Many puppeeees (get it

) will piss in the crate or chew things as a form of seperation anxiety. Ig your dog just started doing this and is just strating to get around 1 or so, this may be just the start.
There is a ton of info out there. Here's a link to check out.
http://www.hsus.org/pets/pet_care/ou...n_anxiety.html