Malcolm Macdonald's left palm slaps down across his right as he brings to life one of his 270 career goals. The sound replicates the most thunderous connection he ever made.
His knees may be scarred, his legs buckled and as bandy as a Spaghetti Western cowboy, yet still he kicks, heads and punches his way through memory of those goals.
Forty years ago this summer, Arsenal broke the British transfer record when they paid £333,333 (and 34p) for England's brash and fearless centre-forward, who had been the First Division's top scorer with Newcastle United.
The passage of time has done little to fade the conviction of a man who was fast enough to be an Olympic sprinter having clocked 10.