Which of Jim Halpert's pranks on Dwight in The Office was the most ingenious?

Jim Halpert's Pranks
The Office (2005)
The Office
TV
Jim Halpert's Pranks poll options
Jim Halpert's Pranks
The Office (2005)
The Office
- Stapler in Jello
- Desk in the Bathroom
- Asian Jim
- Future Dwight.