i've smoked some really potent strains as well but i hardly get paranoid about very potent mj mainly because i was a heavy user 7+ grams a day before for over 10 years...so i know the typical stoned and when something's not right.
if i could find a strong strain i would get happy....alot of other smokers need to be wary of these strong strains and need to recognise this...the question is how to tell if it's a normal strain and not laced...hmmm
Maybe we should make a list of possible symptoms to look out for....i will start it off
1. While igniting the mj it will sparkle
2. Pay attention to the colour of the smoke "not" after you've inhaled either but hover the lighter over the mj burning it slightly just enough to burn it... dark "black" smoke is usually a dead give away or even if it combusts quickly with a puff of black smoke
3. (some more suggestions would be helpful)
"double ewe" love your nick..and the way you worked out the ratio made me smile