How do I know? Because I heard the former and I happen to be the latter.
While roaming the stadium with a wireless microphone as the designated MC-dude, I was assigned to the opposite sideline away from the rest of the media. Meaning, instead of standing a football field away from the fans, I was actually positioned a few yards away from the stands.
Thus, at the very least, I can confirm that the last two plays of the practice session resulted in boos. Kevin Kolb threw an interception. And got booed. Kolb then had a pass batted down at the line of scrimmage. And got booed again.
Thing is, are we talking to the degree that Roger Goodell got booed at the 2011 NFL Draft? Uh, no. Not even close. First off, I'd say that perhaps 15% of the 15,000 fans still remained. And of the 15% of the 15,000 left, I'd say that maybe 15% of those fans voiced their displeasure.
But make no mistake, the boos were audible. And memorable -- at least to me. Because moments before the fans focused on Kolb, a few fans warmed up by unloading on the MC-guy (affable and hard-working?), even taking the name Paulie Pigskin in vain (not cool).
Thing is, here's the question: were the fans booing the guy on the jumbotron and the PA system or were they booing (gulp) yours truly? Likewise, were the fans booing the INT and the batted pass or the QB pulling the trigger? Personal or professional?
Either way, boo birds are almost always birds of prey. For example, if you drop a pass, you hear it -- period. DBs get booed. Ball boys. Heck, even Fitz himself got catcalled last night for failing to hold onto a (bad) pass. From the sideline, I've even heard Big Red get booed. No joke. And you certainly can't boo the team mascot…uh, right? Wrong.
To this day, my exterminator swears that Matt Leinart was/is the long-term answer for Kurt Warner. See, competition begets partisanship. Fans take sides. Kolb vs. Skelton is just starting. And we better get used to it.