[See, now Charles is just terribly amused.]

Oooh...well then the name James should be reserved for special occasions, yeah? Like if ever I become agitated with you, hypothetically given that I'm difficult to agitate. And in turn, for the sake of fairness I give you permission to use Professor Charles Xavier or Professor X. And if you really wanted to get me you could use my full name, Charles Francis Xavier...not too keen on that middle name.