Fury didn't balk at Castle's tone or flinch at the sight of his gun. He simply smiled, his hands as steady as his aim. Looked like they had themselves a good old fashioned stand off. "You're hard to track down, Frank," Nick remarked conversationally. "But maybe you should be a little more careful about spending other people's money. Lotta bills these days are marked. Some are even chipped with tracking devices." His smile widened.