Google Homer simpson for the insanity pepper show.

I don't think any pepper is hallucinogenic,though there was a video going around where a guy who ate a reaper (I think it was)claimed he saw stuff.

There might be a relative to peppers(like Datura) that has fruits that might look like a pepper.

Could Malagueta be the pepper you are looking for from Brazil?

The first one sounds like the Guatemalan Insanity Pepper (l think the first guy might have been pulling your leg).

The second one is the malagueta.

Here is a link that might be useful: Malagueta

Thanks guys. I never heard of a hallucinogenic pepper before so I was a bit skeptical.

From the photos the Malagueta looks like a Pequin. I would bet that is the one the second guy was looking for.

The guy asking about the hallucinogenic pepper was asking us if we'd ever heard of a hallucinogenic pepper from So. America (I didn't remember what country he said it was from, but it could have been central Am. and not South), all I remembered was it was a country south of the border and hallucinogenic. I think my mind stopped at hallucinogenic. ;-) So, he was looking for a pepper from the Simpsons.... sheesh... actually that would make sense, the location of the fair was in the old hippy part of town. ;-)