A forty second blink

I wipe the foggy window of the bus. "Hey look there's a guy in a white shirt and boxers running beside the bus!"

"Driver, stop the bus! Dude running"

Driver waves at me, keeps driving. "Naaa man, he's in training"

"For what? He's got boxers on!"

"Oh good! Yesterday he had no pants on...."

Ever get one of those forty second blinks on the back of a what the....