The train usually gets up a decent speed out of Milton Keynes but sadly you can't open the windows in the carriage vestibules anymore.
You could say something like "As the man who said 'Debt is the road to ruin' I'm delighted you're behind the introduction of new financial rules for the PL."
Or you could get a very hot black coffee and throw it over him, while shouting "Now that's what I call fair play."
I know- how about asking him for his autograph and saying "Welcome to Manchester, Mr Sorriano."