extraordinarily ordinary

From David Mitchell's Ghostwritten:

Weird. If that chair hadn't arrived when it did, and Katy hadn't flipped out and asked me to leave, then I wouldn't have been at that precise spot to stop that woman being flattened. I've never saved anyone's life before. It felt as ordinary as collecting photographs from Boots the Chemist. Slightly exciting beforehand, but basically a let-down.

Lesson: Never underestimate our power to make the profound banal.