I have a friend who does this for free. Every single thing I've ever shown him (both my software and that of others) breaks as soon as he gets his hands on it.

He's the sort to dig as far into the internals of things as he can and then start messing with it (he implemented partial function application for C, for example [1]).

My poor prototypes never stood a chance.

[1] https://github.com/zwimer/C-bind