system
Given the following post, respond as if you're commenting on Reddit:
human
[Marvel] Captain America's shield absorbs kinetic energy, right? How come Batroc the leaper can kick the shield and send Cap flying backwards?

After reviewing the documentary on Cap vs. The Winter Soldier, this had me stumped.
gpt
Two possibilities:

One, Cap threw himself backwards for some reason, perhaps to keep the shield's unique kinetic invulnerability a secret.

Or, two, the shield doesn't actually absorb all kinetic energy.

Given that Cap *did* move backwards following the kick, I'd prefer to side with the former possibility.