They know each other well enough to trust there will be no accidental killing blows. Their reaction times are too good. They know to aim for body shots rather than head shots. It means Steve trusts Clint not to gut or decapitate him, and Clint trusts Steve that he means it when he says he'll enjoy it, however temporary the wounds might be.

So he snatches up the handle, slides it in a pocket, and nods. "Long as it's just you and me and not a single other soul. Lead the way."