If you want to run smack at Weis, trust me, there's plenty of ammo available.
You could, for example, mention the fact that Weis publicly excoriated the owner of a ND homerboard website for committing the unpardonable sin of actually linking to Weis' charity's website, thereby exposing it to a group of people who might be inclined to, oh, I dunno, make a donation to said charity or some such foolishness.
Or you could mention the manner in which Weis responds when asked to see his Super Bowl ring. In case you're wondering, he inserts his ringed finger into his mouth, pries the ring off with his teeth, spits the ring into his hand, then hands the whole slobbering mess to the (by now incredulous, no doubt) other person. Or so I've been told.
Running haircut and/or weight smack at him strikes me as just a tad sophomoric, by comparison. Sayin'. Then again, that prolly means that it'll go over much better on this board.
