Actually I read an article in the Metro today which dispelled a number of urban myths, one of which was that the poinsettia is poisonous. Mind you, they may have meant in relation to humans as the article did not specify. They said that the worst result of ingesting parts of the plant (any part) was mild illness. So given that this is out in the media, marching on the managers office might be a little ill-advised ... Still, better to err on the side of caution and stick to plastic ones I guess.