I will do that, because I know it's tricky, to tie something to your own arm. [He unrolls the long bandage, a verb that would really be a hint if he were less frazzled by the night's events, and wraps it around Sans's arm, then contemplates.]

I think... Yes, I'm going to wrap it a couple times. There's a lot of excess! And more wrappings can only make more pressure.