This adorable video from 2009 shows a very proud father and his son. The dad has good reason to be proud! David, the young man in the video, was leaving home to defend his doctoral dissertation in math at Stanford University.
Tradition mandated that David ride to the defense on a unicycle while juggling. He juggled 4 balls, as math and natural sciences scholars usually do (social sciences: 3 balls, humanities: 2).
He was successful! The father now calls him "Dr. Dave."
-via Twisted Sifter
David went on do his Post Doc at Harvard and finished it off at USC. He is now, at the age of 33, a Mathematics professor at Montana State University and doing research. He juggles 7 balls easily, still rides his Uni, and just recently placed 4th in the Wasatch 100 mile Ultra Run.
And here he is today.