Rick Mercer ziplines with NDP leader Thomas Mulcair

He's had a slumber party with Stephen Harper, gotten body checked by Jack Layton in a street hockey match and helped Michael Ignatieff move into his new digs during the professor's brief tenure at the helm of the Liberal Party.

So continuing a long tradition of getting politicians to do funny things on camera, Rick Mercer recently convinced opposition leader Thomas Mulcair to go zip-lining with him in Newfoundland.

The NDP leader played nicely off Mercer's quick wit, proving a good sport both on and off the line.

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"Off you go. Show us what you're made of," Mercer taunts before the politician's first leap off the ground.

"I'm afraid I'm going to do that literally if I drop," Mulcair retorts.

Between bouts of hurtling through the air at 40 km per hour and picking blueberries, however, the pair also managed to talk a little shop.

Enjoy the latest in Mercer's collection of video gems.