Many have marveled -- or criticized -- Michigan football coach Jim Harbaugh for his non-stop motor.
Every day is something new -- another satellite camp plan or "Signing of the Stars" event or trip to Paris or producing and releasing a rap video. It's exhausting to watch for many and has drawn his critics for the ubiquitous presence.
At times in his life, Harbaugh's relentlessness has turned off potential friends.
"I can understand that," Harbaugh said today on the "Waddle and Silvy" radio show on ESPN 1000. "Sometimes I have difficulty with 24 hours of being around me, too.