With the Boston Celtics on the verge of their first NBA championship in 16 years, fans don't want to miss a second of the action.

So, what happens when a fan is forced to miss the action?

Jimmy Kimmel dared to find out. The Jimmy Kimmel Live! host sent a camera crew to TD Garden for Game 1 to see how long they could distract a Celtics superfan from a Finals game with the Dallas Mavericks.

WBSM-AM/AM 1420 logo
Get our free mobile app

"We tested every ounce of his patience," Kimmel said.

The crew picked Fred Hogan of Lynn for the "Clock Blockers" prank, probably because in his Finals cap and T-shirt, he looked the part of a diehard.

The film crew, posing as a TD Garden/Celtics hype team, had Hogan film a promo.

"Celtics basketball," Hogan said enthusiastically as someone off-camera tossed a ball at him. "Catch it!"

It wasn't quite perfect. The crew wanted to film it again. And again. And again.

Meanwhile, the clock was ticking down in the fourth quarter.

READ MORE: Celtics Look for Repeat Finals Win on 'Magic Number' Date

"Celtics basketball," Hogan said in another take. "You'd be crazy to leave your seat."

By then, the poor guy had been away from his seat for way too long.

Watch the video to see the crazy way things ended for the fan.

The Celtics face the Dallas Mavericks in Game 5 on Monday, June 17, at TD Garden. Somebody get Fred Hogan courtside seats.

Check Out Boston Celtics Jaylen Brown's Massachusetts Home Worth $7.8M

Farmhouse style and modern aesthetics perfectly blend in Brown’s massive 10,099-square-foot home. Keep scrolling to take a look inside.

Gallery Credit: Maddie Levine

Massachusetts' Mark Wahlberg Is Aging Like a Fine Wine

Mark Wahlberg has been in the Hollywood game for decades but he's still hustling. Here are some photos of "Marky Mark" over the years.

Gallery Credit: Phil Devitt

These Celebrities Love Watching The Bruins As Much As You

Hockey season is underway and the Bruins are exciting fans both near and far. Here are the celebrities who will be rooting for the B's no matter how far from Boston they roam.

Gallery Credit: Nancy Hall

More From WBSM-AM/AM 1420