Yeah, he knows the lack of emotion is worse than anything else. People only block out the things that burn too hot for them to handle, and it never ever brings good things. He's the king of doing that. He ought to know.

But he still takes the beer, and empties half the bottle before saying anything.

"Just cut the crap. You're pissed. We both know that. Just get it the hell off your chest and then let me explain."

Come on, FDR. He's offering to talk emotions and crap. That's a big thing.