I sent this one to a woman friend who's turning 40 today. I guess 40 is a big deal. I got my shoes shined on the Michigan Avenue Bridge in Chicago on my 40th birthday. I didn't stay out late on my birthday that time. I waited till the next day and then stayed out all night.
But anyway, 50 isn't as big a deal as 40 and as long as you remember that clock only stops for one reason you'll be ok with getting older.