[Donna steps closer to have a look.]

Mmm... Just a sec.

[She heads over to one of the wall dispensers and checks it before pulling out some change. Her return is swift.]

That looks pretty set in, but this is called a Tide pen. If anything's going to get it out, it'll be this. Go ahead and scribble all over where the blood is with the tip. Reckon you're still gonna have stains, but it's something. Is all of this... your blood?