...well, if he does, it's plastered all over his t-shirt.

We caught up with Jon and his brood doing their bit for the local community firefighters in PA yesterday.

Jon and the kids set up a lemonade stall to raise funds for the station and he and his children dressed up in firefighter uniforms, all for the benefit of the reality TV cameras, of course.

Jon signed autographs for fans and everyone had a great time.

But there was no mistaking the message he had for certain people who have been making claims about  his private life, which he isn't taking lying down.

More pictures of Jon in the gallery below...