This is quite common. Dogs and cats will relish some types of poisonous mushies, shelf fungus, toadstools. If you are aware of the (occasionally fatal) mushroom poisoning seen in humans by recreational usage of the hallucinogenic fungi family then you may be aware of the various severely toxic effects on the brain, kidneys (diuresis) intestines and muscles. The symptoms vary according to the type of fungus. Some symptoms that I've seen are low body temperature, staggering, paralysis, dilated pupils, slobbering, diarrhoea. I usually am at a loss to be certain so I use the old principal of dilution of the poison if I'm not sure what it is and put the dog on a drip for as long as it takes to recover. The closest thing it looks like is snake bite but the blood test comes up quite different.

