Patrick watched David for a moment and then, despite everything, his face broke into a smile and then he even chuckled, despite the pain. "Augh, yes. Yes that I will be doing." He stood slowly, using his brother for support as he moved towards his bathroom.
There was alcohol hidden in there. He would have to try to avoid it. And though the easiest way to do that would be to tell David where it was and let him take it, Patrick didn't do that.