Yep, I'm a ragtop man BY DAVE BARRY (This classic Dave Barry column was originally published on Feb. 23, 1997.) I got a convertible. Now I know what you're going to say. You're going to say: ``Dave, you pathetic fool, you're 49 and you're having a midlife crisis. Trade that thing in immediately and get a car more suitable for a person your age, such as a 1910 Hupmobile with air bags.'' No, darn it! I LOVE my convertible! I've ALWAYS WANTED a convertible! For 33 years I've been driving boring cars, starting with my mom's Plymouth Valiant, which was...