on lsd once, i went out to my front porch to smoke some pot, and my cat was kickin' it there on the bench and i tried to communicate with it telepathically by thinking "please let me sit there" really hard and it meowed and i heard a voice in my head saying your an idiot and then my cat scooted over so i could sit on the bench. That was a crazy trip.
One of my cats, Tyme-Orpheus (Or Phi for short), formed a very special bond with me when I was on LSD. He would literally just sit in my lap the whole time, totally placid, wouldn't leave me for a second. I don't know if he was hanging out with me 'cause he knew I was in a more vulnerable state, sort of protecting me, or whether he was kind of getting a contact high and just basking in the psychedelic vibes.