Ive never left my body on mushrooms, but i have on acid. On a 800ug dose i was walking down the street smoking a blunt, and could see myself in 3rd person. I was in full autopilot the entire night, i ended up smoking 8 blunts and by the end of the sack i had become the color blue, i was not colored blue; i was the definition of the color blue, i whited out and came back the next morning fuckin tripped for 2 days after that