I asked my dentist this morning when he planned to retire. He's 67. I'm going to be 65 in 8 days. He said what others have. When I quit enjoying what I do -- or I develop a bad attitude toward what I do -- I'll retire. Until then, he said, his health is good, his hands are steady, and he continues to enjoy the work. He said he's seen some contemporaries who say they're busier than ever in retirement -- and others who are looking for jobs because they're bored to death. There's only so much golf you can play and so many fish you can catch and so many books you can read, he said. I told him how much I've appreciated his service to my family's dental needs over the years. He extracted my daughter's wisdom teeth -- and patched up my teeth more than once (including the cracked one today).