I've come across some funny glitches lately. Back then, when I had a total of two FeralHeart folders, it really screwed up my graphics. In south pole, I couldn't see anything past a certain point. The point I couldn't see was all black. Whenever you move, the black moved across the land, so it was never-ending.
A glitch along with that one was the Jaguar 2 Marking. The whole body turned yellow, the default marking colour.
If you looked closer, you could see the rosettes, but it glitched a lot.
This glitch that deletes your friend list has become one of my concerns. ouo;
Also, I've seen people in the sky.. x'D And people swimming on land. It looked rather funny.