Very early on in my stooner career.
A friend of mine brought along a joint to share before we hopped on the bus, told us it was farley week (mixed with tobacco) . Once the joint was spent we made our way to the bus stop, and without realising didn't say a word to each other, took a spontaneous wrong turn without any communication still, ended up at another friends home (who wasn't home), burst out laughing before we sat down next to a road.
I knew I really didn't want to get on the bus, I was very paranoid about everyone and everything, so i persuaded my friend to go and chill somewhere quiet, where we originally smoked up. As a stood up to cross the busy main road, my vision just went. It's incredibly hard to explain, kind of cartoon, but more of a yellow tint on everything, needless to say as I was crossing that road, I was not a happy bunny.
A soon as we arrived into the quiet area I was fine.
Not sure whether it was a case of my mentality, IE taking the biggest hits possible because I'd been told it was farley week or what, but that was probably the craziest shit I've every experienced on the bud.