Diagnosed with cerebral palsy as a child, Lee Ridley – in his own words – "walks like a drunk and talks like a posh version of RoboCop".
Billed as Lost Voice Guy, Ridley uses a communication program on his iPad to deliver his material, like a fouler-mouthed Stephen Hawking.
Apart from the fact he was standing up, the 33-year-old's gig yesterday lunchtime at the Black Box was stand-up like we have never seen before.
Robbed of a comedian's usual tools of pacing, tone and rhythm, Ridley's writing and some accompanying hand movements had to do all the work for him.
Happily, it was more than enough, with his self-deprecating musings on his condition and some near-the-knuckle punchlines keeping the chortles coming thick and fast.
It was thought-provoking stuff, but you sensed Ridley was as interested in where the next laugh was coming from as he was in making any serious point. The man's nature and way with language meant we could have listened to him all afternoon.