I have done a LOT of blogging about this topic. A lot. I call them my "Beyond Disgust" series and am up to about 25 or so entries. Needless to say I have long since run out of fresh art or imagery. I hope you do not mind if I use this the next time I write on these horrors. If you object, please drop me a note. TYTY.
The anger smiley is because they make me so angry it is difficult to keep from hating them as they so deserve.