David Letterman presented New York Yankees owner George Steinbrenner with a canned Polish ham, then cut to the chase.
"If we get a sense you're gonna move Yankee Stadium, I'll hunt you down and beat you with my fists!" he said.
The studio audience for Tuesday's "Late Show with David Letterman" stood and cheered wildly, while Steinbrenner smiled in strained silence.
"It sounds like you'll have a lot of help out there," Steinbrenner said after an uncomfortable pause.