I smoked too much one night of some really strong stuff. It was back when I'd only gotten high for a few months, and my tolerance was very low. Too many bowls, then I tried a bubbler for my first time. Ended up taking too much because I didn't feel the smoke and I inhaled a nug. Puked and gagged for a few minutes, then I was as high as a kite. As I took each step, the world seemed to rock back and forth. Kind of like being on a boat. It was my first trippy experience and then I went and layed down inside a warm post office (it was like 2am and I have no clue why the door was open). It felt SO wonderful, I never wanted to leave. There were colors swirling around when I closed my eyes. Then we ventured into 7 eleven, ate a lot, and the hallucinations went away.
I've had a few other hallucinations from weed since then, but they were nothing special. At least compared to most other psychedelics.