I wonder if this one is part of the bark like a dog brigade? True story: had a kid at one of the schools I worked at that would act like he was a dog; get down on all fours and bark at you; at the time I used to think "now, I've seen everything". I was obviously wrong. At least he had the excuse of suffering from schizophrenia among other things (and he wasn't violent, just barked when he was upset; I can deal with that)...these are supposedly sane, functioning citizens. Now I'm pretty sure I've seen enough because everything is perhaps beyond my ken.