"and from the secondhand smoke, became partially high on it myself."
Sorry, a little late here. Figured I'd stop on by to TMK and see what the deal was.
As for that quote: "Contact highs" are usually placebo effects. Yeah, it's smoky, it can smell like crap, and you know the effects of it, so you might be tricking yourself into thinking you're high when you're placed in that type of situation. I could say, however, that the potency of weed has just been going up and up, so depending on the 'grade' of weed, then I'm sure you could get just a tiny, tiny bit of it in your system depending on how much the person inhaled, but not enough to warrant a full-blown OMG I'M HIGH THIS IS CRAZY response.
Trust me, there have been more than a few times where my old buddy (who has fallen into the hole of smoking constantly) has lit a blunt up in his car and kept the windows up with no A/C on (read: I've been perfectly fine). I haven't smoked in ages and I vowed to myself I never would again (and haven't), but even then, whether he's just smoking some schwag, or dro, or kush, etc. etc. etc. I've never, myself, gotten high from the second-hand smoke, ever.