"Would I Lie to You?"

The below clip is from a BBC show called "Would I Lie to You?" and had us laughing until we cried. It's long, but worth watching.
Quick background on how the show works: team members have to read the statement on the card, which they've never seen before and have no opportunity to pre-plan what they'll say. They're supposed to convince the other team of the story's truth, and the other team can ask follow-up questions about the story. This is Kevin Bridges' turn (he's a Scottish comedian). But the clip's star is really David Mitchell, whom we enjoy in general but is especially hilarious here.
Let us know what you think.