This is a little fun thing I figured out today going to the treasure chest in the starting area.
Here goes:
Step #1. Log off.
Step #2. While the Exit Game timer is running down, hold both mouse buttons. You'll now be sliding on your ****. You can use A or D to steer, but if you hit A or S it will ruin it.
Step #3. Click "Cancel" once you're in the water.
Step #4. Run around and have fun!
..I'll be investigating other glitches possible with what I've hereby dubbed 'LMC technique' (Logout, Mouse, Cancel) and may make another guide listing them all.
I hope you guys can find something fun to do with this!