^ I agree that an OD of edible cannabis is no laughing matter.
Sure, say "I told you so" to your gung-ho friends who end up spending 8 hours in foetal position on the floor, when they went nuts on the space cakes.
It shouldn't be a dicksizing thing, either - some people are really sensitive to weed, and eating too much is something they should be warned to avoid IMO.
But unless there are a significant amount of other CNS depressants in their system, a pot OD shouldn't be life threatening - just very unpleasant.
If I had a friend on, say - opiates, benzos and on top of that, ended up zonked on too many weed edibles, I'd keep a close eye on them, monitor their vitals, lay them in coma position - and if need be, get them to the nearest ER if things go bad.
I don't know how much cannabis can affect a heroin OD (for example) but it's not worth taking any chances; especially with edibles.
Remember benzo ODs on their own are rarely fatal.
Throw a strong opiate into the mix, and you have a potential emergency.
Watch out for your friends - dont ridicule them; especially if you're not really sure what other drugs they may have consumed.
But taking someone to hospital for eating too much cannabis is only going to make the experience more traumatic and uncomfortable.
(Not to mention expensive, stateside friends).