e i g h t - c u b e d . c o m 

He's talking about gremlins, right?

Always design and code assuming that threads are more asynchronous than you can imagine. Anyone who's written a lot of code knows that computers have little creatures that enjoy annoying you. Remember that when you code with threads there are a lot of them loose at the same time. Take no chances, make no assumptions.

Sage (and amusing) advice on programming with the pthreads library from David Butenhof.