As Rob Copland acknowledges with apparent ambivalence, this show, wrestling with ideas of what constitutes success in life, has been conventionally successful, winning prizes such as the Victoria Wood Award in Edinburgh and landing him a mini-tour. With eight years under his belt as a decidedly cult comic, still working as a pot-washer in a bakery, these plaudits may undermine Copland’s sense of struggle. But they’re fully deserved for Gimme (One With Everything)’s ebullient collision of existential angst and joyously idiotic, unpretentious clowning.

He veers towards surrealism in a wonderfully whimsical routine about entering a shoe shop barefoot. Yet his gurning, excitably possessed follow through on the idea isn’t arthouse: it’s pure Jim Carrey, mugging for maximum entertainment, his cartoonishly animated features and limber, irrepressible physicality constantly being pressed into action. Whether he has ADHD or not seems almost incidental. Yet he blurts out some great gags about the condition, while the terrible experience of his great uncle during World War II adds a certain pathos and correspondence with his own situation.

But while his exhortation to live for now with childish abandon might be garlanded with philosophical enquiry and snatches of personal insight, this hour is so packed with varied, wilfully daft surprises that it doesn’t seem altogether integral. That being said, virtually every seemingly throwaway bit of business pays off narratively, especially in a bravura final ten minutes in which Copland flips the script just as he appears to be winding up, achieving poignancy and a real sense of communal bond with the crowd.

Rob Copland: Gimme (One With Everything) is touring the UK until Wednesday 4 June; reviewed at The Old Hairdresser’s, Glasgow, as part of Glasgow International Comedy Festival.