Anyway there are those who are more careful, probably smarter, and there are people like me who have somewhat of an intimate relationship with plants. As far as Euphorbias are concerned, if one tends to be sensitive to things in general, maybe it is a good idea to be careful with them. Otherwise enjoy the fun of them. I am a little annoyed that everytime someone brings up Euphorbias on many of the discussion lists I belong to, there is all this talk and rumor of poisonousness of Euphorbias. Yes, they can be a little worrisome.
Some species are worse than others.
Someone always brings up the story of some kid that got killed eating a Euphorbia in Florida. First of all I think it is just urban myth. It is unlikely that anyone would cram that much Euphorbia down his or her neck unless they were trying to leave this planet. I think that particular photo shows the true nature of euphorb flowers very well. They are very strange in their architecture.