Yeah. I've actually seen this posted quite a lot. Also that one Marv posted with the guy coming back from what was obviously a devestating injury. I would hesitate to say though that he's "happier" than some. I'm sure he would like not to have the problems he does have but he definitely has a better outlook than most...so you could equate that to happiness. But I have to think that a guy like that wouldn't exactly ever be a sourpuss in any circumstances
Anybody can whine and complain. Focus on their limitations. Make excuses. Think they are something ungodly special because they "workout" and then complain about their bench press, lol. This is the kind of perspective that I feel is ten times better than some guy squatting 800 pounds.