The craziest thing...?
Well, I've seen a herd of different-colored yoshis that looked like a giant rainbow, and I've had a group of... ferrets, I think, asking me if I wanted to buy a zucchini snuggie.
Oh, and some really odd glitch happened where some random person found their way into my friend's Warriors map without having the file or the portal when he was trying to get in some other map that he had. o_o I don't have a clue how that's possible, but it happened.
Some people who wanted to join got angry 'cause we had a random dog-wolf-thing in the RP. xD