A nice guy at a festival I was at made a frankly compelling case for boofing LSD. Claimed the come up happens in 15 minutes and that most of the usual stomach upset was gone. Not going to shove acid up my ass but you need to appreciate and recognize well earned wisdom when it enters your life.
He's not wrong. Taking drugs that way is faster, but you also need to be very careful because this method dumps drugs directly into the bloodstream without going through the liver first.