"What a lot of people don't know is that this "bug" isn't a bug at all, but rather an embarrassing result of the degenerative leg disease our motion capture actor, Del Bluskin, has bravely endured for over a decade now, which has turned the lower half of his skeleton into something that looks like two raw bacon strips held up in a wind tunnel. To be honest, Del's been a part of the Valve family for so long, we just didn't have the heart to fire him simply because his ailment had rendered him grossly incompetent at his own job. To be even more honest, we didn't have the heart to engage in a long verbal sparring match with Valve's legal team, who told us that under no circumstances could we fire Del."
Haha.