I'm really, really fed up with the whole Kavanagh bashing everywhere. In "Thirty-eight minutes", he just pointed out his (reasonable) concerns about the safety of all of Atlantis, and had to suffer the worst kind of character assassination from (an evidently PMS-ing) Weir -- and as a result, from fandom as a whole. Kavanagh never said anything about being scared for his own life; he just acted according to Spock's axiom everyone praises to high heavens: "The good of the many outweighs the good of the few... or the one."

Well, the 'jumper's crew was the few. The many were the rest of the Atlanteans. That the 'jumper didn't blow (and therefore the gate), was just a stroke of pure luck.

Hence, this icon: