Thankfully for the continuing de-escalation of this little incident, Kaworu is completely aware of his shortcomings in that department.

...well, not completely aware. But he's not entirely blind to it. Not even he's capable of that.

"Sorry." It's not insincere--even if the tone is a bit inappropriately casual. "I've never had anyone throw anything at me before, though." Just punch him. And grab him by the collar and slam him into walls. And shove him away.