Mostly? That this isn't an anonymous poll. And as no one has voted yet, it's impossible to tell. Edit: Oh thank god it is. The long national nightmare is over.
I'm choosing to see this through the common idiom of "dirtying one's hands" meaning to commit some sort of sin. In which case while I care about both things, I'm more worried about and fear more about whether or not my own hands are dirty. Unless we're talking about handling food, in which case I care about mine being dirty always, and yours depending on whether or not you touch the food I'm going to eat.