So, I’m in the health food store the other day – yes, Where’s Kernan is trying to lose weight – and I pick up a couple organic oranges with some other stuff. I go to pay at the checkout and the cashier asks me: “Are these grapefruits?”

Wow. If you work in a health food store and don’t know the difference between a grapefruit and an orange, it might be time to do some homework.

That’s why I usually stick to doughnuts.

I’m in Boston; it’s foggy and will be heading to Fenway soon.

Yankees have been in a fog all season (not as bad as the Mets, though) and will be heading to the ballpark after last night’s wonderful 19-9 marathon that ended around 1 a.m.

I took the train up, the only civilized way to travel these days. Always sit on the right side of the train from New York to Boston, that’s the best views of the water. It’s a weird scene at Fenway this weekend. The Yankees are done and the Red Sox are heading to the playoffs for the fifth time in six years.

The Red Sox are enjoying their transition season – No More Manny – the Yankees are hopeful this season is a blip on the screen.

The great thing about the train is it’s quiet – unless you have some guy in the back talking every inch of the way. Which was the case, I learned a lot though. I learned about barbecuing. This was after a course in economics. Followed about colleges for the kids, how to throw a party for teenagers and adults, more economics, more food, St. Louis barbecue and the great thing is, even though he was at the back of the car, it sounded like he’s right next to me.

All free entertainment. Betcha he knew the difference between an orange and a grapefruit. He must be the boss because his seatmates are making believe they are actually listening.

My mistake not getting in the Quiet Car.