Here are some of the funniest pranks pulled off by students in Korea:
- Rearranging signs, desks and chairs
- Switching uniforms with the opposite gender
- Dressing up backwards (literally, so your back becomes your front)
- Holding someone's legs as the he/she hangs upside down from the window
- Moving the entire classroom outdoor

Oh, those crazy Korean kids.
If you ever plan on celebrating April Fools Korean style, make sure to take all the precautions possible to stay safe and unhurt! As you can see, some of those pranks are pretty hardcore.