[Keyser Soze]

You're still not getting it. I'm saying something that plainly happened on-screen happened. You're saying something that plainly happened on-screen didn't happen, or doesn't count, or whatever- I'm not quite sure. It's as much an interpretation as me "interpreting" that The Hulk kicked Loki's ass and you "interpreting" that it was an evenly matched fight.

If there's any interpretation in my post, it's in the reasoning behind the tear. And I'd say in the context of the scene, "because he is sad at what he has done" is about the safest assumption about the meaning behind the scene to be gleaned.