Post workout or during workout..mishaps

Ever had such a hard workout where you threw up or nearly passed out? The throwing up part ..just happened..luckily it was right AFTER I went to the locker room...In addition, I've had a workout where I passed out for a few seconds right after my last deadlift..anyone else? oh and I was following this routine....http://www.bodybuilding.com/fun/hst1b.htm