LIKEABILITY and puppyish energy run through Russell Kane's act like raging bulls through Pamplona in July.
The upbeat comic heads to Swansea's Grand Theatre on Monday, at 8pm, with his Posturing Delivery show and, he says, that enthusiasm comes from nothing more than DNA and a certain energy-giving fizzy drink.
"Lucozade and my mum," he laughs.
"It's a killer combination of sugar and genetics!
"Energy is fundamental to my act — in fact, it's more important than almost anything else.
"I had instant energy from the moment I was laid out on a towel when I was born. My mum's life was hell from that moment on.
"As a child, I needed constant stimulation. I wanted answers to everything. On my first day at nursery, when all the other kids were sobbing and holding on to their mums' legs, I ran away from my mother and didn't even look back."
I assume he will spare a thought for his harried mum when he performs Posturing Delivery, since it ponders the rarely-talked-about issue of men's ticking body clocks.
"At what stage is it appropriate for a man to worry about having a baby?" he asks.
"The issue sometimes seems to be exclusively female, but why should it just be for the women? Do men have a biological clock?
"And does it tick in the same way as a woman's? On stage, I have an imaginary baby called Ivan that grows from nought to 18 in the space of an hour."
The inspiration for the show came when Russell had just split up with a girl and he confided in a friend that he was worried people in his industry never got around to having a family.
"But she said, 'You don't have to worry. You can still be a father at 50'.
"But just because it's biologically possible doesn't mean it's the best way."
Having an imaginary mini me on stage will no doubt remind him too of his own late-teenaged self, when, aged 19 he discovered stand-up.
"I left university and got a very good job at an advertising agency. But it was so full on that I needed a hobby in the evening to divert me.
"I picked stand-up comedy at random.
"I could have done French or pottery or dance.
"I had never been to live comedy in my life. "From the very first gig, something that had been locked inside me for a long time suddenly came out."