Dunking the glove over the wall is pretty great, but might be topped by the "Aw, dangit" look on Gordon's face when he turns around. In the left corner of the GIF, you have a fan failing to catch the same foul ball in their own way glove-less way:
A one-hand grab is attempted, and missing the souvenir somehow criticals the fan. Their arm seems fine when it's used to stop their toppling, so who knows what's going on here:
You would have had it with two hands!
Maybe self-preservation and instinct won out on the fall and there was good reason to go one-handed until that moment. We'll never know, because no one on the broadcast asked the tough questions afterward.
Don't worry, though: Gordon got his glove back in the end, and from his partner in foul ball failure, even:
(In time for the Royals to blow it and lose in extras.)