What you could have done...
Call your buddy up and tell him that you heard it on good authority that for pulling out of his contract like this...
He has to go to the recruiters office where he'll be met by some government suits who will "escort" him to a specific medical facility where a non removable tattoo will be inked into both his chest and back.
This tattoo will only be viewable by Doctors and it lets them know that he (your buddy) backed out of a military contract and they (the Doctors) do not have to treat him if they dont want to.
or something like that.
Even better!! you call him up and tell him that You called his recruiter for him. You let his recruiter know what was up and the recruiter ordered to "talk your buddy into comming down to the station...tell him it's just to sign a few papers and then he's free and clear..' but what's really gonna happen is that he's gonna be arrested, hand cuffed and transported immediatly to the stockade
It's sad when ya gotta pass up a really good chance to mess with your buddy's head for awhile.