Normally, yes, but tragically, I'm afraid I already gave up my jacket.

[ not that he missed the implication there!! he watches her jump down, taking a step forward in case she stumbles or needs to be caught, which she clearly doesn't. ]

I was mostly asking what you were doing up there.

[ and now, he's wondering what she's drinking there, too. Blood is (obviously) not the first conclusion he jumps to, but it looks too thick to be wine. ]