The Authority is in his crystal prison suffering when a bloodlusted BumbleBee gets into it and decides to kill him. The old angel can only attack by trying to crush the pest with his hands. Win via death or outliving.
No, this is a bumblebee, only honeybees die when they sting. Other bees can sting repeatedly. The Bumblebee is actually more gentle than the honeybee, but this one is bloodlusted, and is determined to sting him over and over until he dies. It's a question of if it can succeed before it gets crushed by his slow moving arms.