[He has some larger bandages in hand when he turns around and...

sees she destroyed the band-aids...]

Dude! That's not-! [He gets a few more out, after juggling some of the other bandages in his hands.] Here, this is how you open them. [And opens it normally for her to show her, then hands her the bandaid.]

Put that on the scratches, and then give me your left arm. You really got it good there. [It's not the worst cut ever, but it's deeper than the others.]