Cowboy Boots

An elderly couple, Margaret and Bert, are in California.
Bert always wanted a pair of authentic cowboy boots. So seeing some on sale one day, he buys them, wears them home, walking proudly. He walks into the house and says to his wife: 'Notice anything different about me?'
Margaret looks him over, 'Nope.'
Frustrated Bert storms off into 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?'
Margaret looks up and says, 'Bert, what's different? It's hanging down today, it was hanging down yesterday, and it'll be hanging down again tomorrow.'
Furious, Bert yells, 'AND DO YOU KNOW WHY IT'S HANGING DOWN, MARGARET?'
'Nope', she replies.
'IT'S HANGING DOWN BECAUSE IT'S LOOKING AT MY NEW BOOTS!!!!!'
To which Margaret replies... "Shoulda bought a hat, Bert. Shoulda bought a hat.