When I lived in Texas, I often worked around outside on the weekends; fixing stuff, mowing, trimming trees, clearing fence lines, and the like.
One day, one of my neighbors, whom I had not met, walked over and introduced himself.
We chatted for a few minutes, getting to know a little about each other, when he finally said, "I see you working out here a lot and you seem to be pretty handy. I've got a little project going and I was hoping you might have a tuba I could borrow."
"A tuba?", I said, with a puzzled look on my face.
"A tuba", he reaffirmed.
I thought for a minute and replied, "Well, I'm sorry but I don't have a tuba. I have a guitar that you're welcome to borrow though."
He said, "No, no! I need a TUBA. You know. Lumber. I need a tuba four."