clemens pitches to clemens

I hear that Roger Clemens gave up a long homerun to his son in batting practice.  And the next pitch he threw to his son was high and tight.  Sounds awful, right?

Roger Clemens, a future hall-of-famer, can hit his spots.  Until I am proven otherwise, I'll say that Roger would never hit his son.  But getting chin music is a perfectly acceptable and reasonable way to prepare for big league play.  Why not get a pitch near your face from someone who will intentionally miss it?