Originally Posted by
cranky old road
Put them on backwards and go for a ride?

I liked this answer the best!
Unfortunately I too have fallen victim to the dreaded Campy brake pad curse. It's almost enough to make one switch to the dreaded S-company (either one).
I was able to remove the first pad by pulling it out from the cartridge with a pair of needle nose pliers. Unfortunately the second one just crumbled away when I tried it. Ultimately I was able to get it out by cutting it down, and then using the tip of a small flat bladed screwdriver to pry it out.
Learn from my mistake - don't let your brake pads wear down too far!