First Time Trip

Ok so this was about 4 months ago, my buddy and I decided that we had smoked enough pot for the week and wanted to try something knew. Mushrooms seemed like a good idea since they were cheap and agreed with our "natural-shit-only" rule we try and follow.
So anyways, we pick up a quarter of them and we each pop about 1.5-2 grams worth into our mouths (not having done them before, we didn't know how much to take and wanted to be on the safe side). We set out on a walk to meet one of our other friends at a Tim Horton's 10 minutes away. So we get there and we meet our friend and we are talking for a while when all of a sudden I started feeling really light-headed. I couldn't concentrate on my thoughts anymore and just start to kinda panic. I guess my other friend wasn't feeling anything since he went into the bathroom to roll a fat joint we would smoke later. While he was in there I just stared at the room I was in, completely ignoring everything my friend was saying to me. I looked at the walls and the pattern they had on them (or at least, the pattern that I saw on them :S) started spinning in circles and melting into itself. It was one of the most fascinating things I had ever seen. A few minutes later my friend came out of the bathroom and the 3 of us left to go smoke his joint. We got to this field behind some houses where we usually smoke up and decided to light up. It was about 9pm so it was dark and I was starting to trip out. Everytime my buddy sparked the lighter I would see a wall of flames and I literally jumped out of the way several times to avoid being burned. That about sums it up, after that we smoked pot and crashed at my place... though I did have some pretty fucked up dreams that night..