A fellow asks his friend if he'd like to join him on the range. "Would love to, but Johnson is playing at the concert."
So the next week the fellow asks his friend if he'd like to join him hunting. "Would love to, but Johnson is playing at the concert."
The next week he asks again, this time if the friend would like to for a beer. "Would love to, but Johnson is playing at the concert."
"Now, what kind of instrument is this Johnson playing if you prefer him to shooting, hunting and beer?"
"Dunno, buddy, but him playing at the concert means Mrs. Johnson is home alone..."