Ok, I'll admit it. I have a juvenile sense of humor, and occasionally find crass, offensive T-shirts with four-letter slogans amusing. I, however, wouldn't ever wear one, especially not at a public event, and especially if that event were geared toward families.
But Alex Rodriguez's wife apparently thinks the "F-bomb" is funny on a T-shirt no matter where you're wearing it -- even if that means sportin' your "F--- You" top at the stadium during one of your husband's baseball games. Classy! Oh yeah, she was with the couple's 2-year-old daughter at the time. Even more classy!
Normally you'd get kicked out of the ballpark for a shirt like that, but when you're married to the second-highest-paid baseball player in the world, I guess you can wear whatever you want.