Superman rolling up his sleeves.
I don’t know how I would feel if I managed to make Superman so angry that he goes full farmhand and rolls up those blue sleeves of his.
You now see Superman’s forearms and they are even more terrifying bare.
This is the “Alright, now I’m serious” of clothing gestures, topped only by “Hold my Rings”.
I just think if I saw Superman do that, I would actually feel bad for the villain (if only a little). If I WAS the villain, I would just give up.
I know what he can do to me with the sleeves down – I’m not going to risk it.