''You want me to turn it up?'' said Andy, from somewhere behind me.

''Ha ha,'' I said.

And then it was time, the moment I had been dreading for more than a decade. If you are squeamish, prepare yourself, because I am going to tell you, in explicit detail, exactly what it was like.

I have no idea. Really. I slept through it. One moment, Abba was shrieking ``Dancing Queen! Feel the beat from the tambourine . . .''

. . . and the next moment, I was back in the other room, waking up in a very mellow mood. Andy was looking down at me and asking me how I felt. I felt excellent. I felt even more excellent when Andy told me that it was all over, and that my colon had passed with flying colors. I have never been prouder of an internal organ.

But my point is this: In addition to being a pathetic medical weenie, I was a complete moron. For more than a decade I avoided getting a procedure that was, essentially, nothing. There was no pain and, except for the MoviPrep, no discomfort. I was risking my life for nothing.

If my brother Sam had been as stupid as I was -- if, when he turned 50, he had ignored all the medical advice and avoided getting screened -- he still would have had cancer. He just wouldn't have known. And by the time he did know -- by the time he felt symptoms -- his situation would have been much, much more serious. But because he was a grown-up, the doctors caught the cancer early, and they operated and took it out. Sam is now recovering and eating what he describes as ''really, really boring food.'' His prognosis is good, and everybody is optimistic, fingers crossed, knock on wood, and all that.

Which brings us to you, Mr. or Mrs. or Miss or Ms. Over-50-And-Hasn't-Had-a-Colonoscopy. Here's the deal: You either have colo-rectal cancer, or you don't. If you do, a colonoscopy will enable doctors to find it and do something about it. And if you don't have cancer, believe me, it's very reassuring to know you don't. There is no sane reason for you not to have it done.

I am so eager for you to do this that I am going to induce you with an Exclusive Limited Time Offer. If you, after reading this, get a colonoscopy, let me know by sending a self-addressed stamped envelope to Dave Barry Colonoscopy Inducement, The Miami Herald, 1 Herald Plaza, Miami, FL 33132. I will send you back a certificate, signed by me and suitable for framing if you don't mind framing a cheesy certificate, stating that you are a grown-up who got a colonoscopy. Accompanying this certificate will be a square of limited-edition custom-printed toilet paper with an image of Miss Paris Hilton on it. You may frame this also, or use it in whatever other way you deem fit.

But even if you don't want this inducement, please get a colonoscopy. If I can do it, you can do it. Don't put it off. Just do it.

Be sure to stress that you want the non-Abba version.

©2008 Dave Barry
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