Only thing worse than a control freak is a freak in control.
Now he's telling you he's been pushing your button, just to get to push your button. He seems really fascinated with your button. Don't let him. Make him play with his own button for a while.
As long as you expect his very worst, he will never disappoint you or let you down. You will not be off balance, just annoyed.
Now, tell us more about this button. It seems to be quite a special button.