On the other hand Doug, it could be good camouflage.
I present you with this as a spin doctor/propagandist's train of thought (the notes in brackets are mine).

"Here we have a man who is perceived (NOTE: we are talking perception, not necessarily truth<1>) as acting occasionally like he is a sandwich short of a picnic. He has a problem wich may or may not be serious so, if we give the press an excuse which sounds outlandish, then people will laugh, make a few jokes and look no further, if we give them a believable excuse, people might start to worry and look into the matter. Bring on the pretzels."

Absolutely no evidence, just a feeling.
Then again, if the choice is a conspiricy or a cock-up, it'll useually turn out to be a cock-up.

Walrus