Mr Bill and Brad Penny

Has anyone else noticed the hilarious merry-go-round that Brad Penny is on?  He's jumping off and on the Boppers roster every other week, it seems like, and yet never starting.  Penny has been involved in the following transactions with the Boppers- added May 3rd, dropped May 4th (1 day); added May 7th, dropped May 16th (9 days on team), added May 25th, dropped ???.  He did manage to sneak in one start in the May 7th to May 16th, when he turned in 6.1 IP, with an ERA above 5 and a mediocre WHIP.  So why does Bill keep picking him up?  Should we all chip in and just buy Mr Bill some Ritalin so he won't be quite so hyperactive when it comes to Brad Penny?