Thats the stupidest shit i've ever heard.
For one, smoking shrooms will produce **** all to very little effects, second of all, its very hard to smoke shrooms because they don't burn and smoke...
Sounds like whatever you got was DMT or Salvia, or just some VERY strong weed.
Yes, weed is a psychedelic, so providing you get good shit it IS possible to get so ****ed you can hallucinate.
Thats ****ing retarded.
Sitting inside while on any type of strong psychedelic will just piss you off, as you generally want to get out and explore and look at things. Half the fun of psychedelics is walking around exploring and realising and seeings things you've never noticed before, sitting in your house is boring as ****.
Psychedelics + Outdoor Rave / Camping = WIN!