Ask the hobo to tell you a joke

<name> clears his throat, and tells you a joke: "How many tractors does it take to screw in a lightbulb? Two: one to drown the lawyer, and one to get off the trolley!"

or

<name> clears his throat, and tells you a joke: "How many lawyers does it take to screw in a lightbulb? A tractor!"

or

<name> clears his throat, and tells you a joke: "So a tractor and a lawyer are floating in a reservoir. The tractor says, 'Hey, got any coconuts?' And the lawyer says, 'Get off the trolley, jack!'"

or

<name> clears his throat, and tells you a joke: "So a tractor and a lawyer walk into a bar. The bartender says, 'Hey, got any coconuts?'"

or

<name> clears his throat, and tells you a joke: "So this lawyer walks into a bar, and he pulls a tiny tractor out of his pocket and puts it on the bar. The bartender says, 'Hey, got any coconuts?' And the lawyer says, 'Get off the trolley, Jack!'"

or

<name> clears his throat, and tells you a joke: "So these two tractors were in the bathtub together. One says, 'Pass the soap.' The other says, 'What do I look like, a lawyer?'"

or

<name> clears his throat, and tells you a joke: "How do you drown a tractor? Hit it with a lawyer!"

or

<name> clears his throat, and tells you a joke: "How do you drown a lawyer? Hit it with a tractor!"

or

<name> clears his throat, and tells you a joke: "A trolley and a bartender walk into a tractor -- wait, consarn it, that ain't right. Oh, well, it ain't that funny anyway."