This may be the best prank call ever!

Oh my God I'm rolling on the floor someone come and pick me up. Loved it. The taxi firm obviously knew it was a wind up.
Dont grow up Tim stay 3 nearly 6
For god sake you miserable lot!!!! He is a really nice guy as just trying to make people laugh!!!
It's obvious the taxi guy is playing along that s what makes it funny... come on too much misery in life.. lighten up!
Thank you for