The knife is small enough that Lex finishes cleaning it effectively, but Adrian is right. The other two weapons are large and by the time Lex finishes cleaning one area it would probably become soiled soon after. He's almost certain that Adrian finds his actions today completely foolish and that's not at all the impression that he wants to give.

Lex sets aside his knife with a resigned frown, or as much of a frown as his slight facial tics give away. Accepting help isn't one of his strong suits. He turns away from the sink and looks to Adrian. "I would appreciate that. Did you want to stay here?"