An elderly couple, Ray and Bessie, are "snowbirds" in Texas.
Ray always wanted a pair of authentic cowboy boots. Seeing some on sale one day, he buys them and wears them home, walking proudly.
He walks into the house and says to Bessie, "Notice anything different about me?"
Bessie looks him over, "Nope."
Frustrated Ray storms in the bathroom, undresses, and walks back into the room completely naked except for the boots. Again he asks, a little louder this time. "Notice anything DIFFERENT NOW?"
Bessie looks up and says, "Ray, what's different? It's hanging down today, it was hanging down yesterday and it'll be hanging down again tomorrow."
Furious Ray yells, "AND DO YOU KNOW WHY IT'S HANGING DOWN BESSIE? IT'S HANGING DOWN BECAUSE IT'S LOOKING AT MY NEW BOOTS!!!"
To which Bessie replies, "Shoulda bought a hat, Ray. Shoulda bought a hat."