I unwittingly dosed very high the first time I did mushrooms and the Shroom Aliens communicated to me that they were Extraterrestrial Beneficial Parasites who were colonizing us through shrooms, implanting the spores in our brains and giving us the benefit of the high.  I walked around for 2 weeks or so telling my friends about it, and for some reason none of them wanted to do any of that batch of mushrooms.