He tells this tale on himself, when he was doing one of those shows where a guest would do a song and he'd whip out a cartoon on a huge pad of paper he'd tacked up towards the back of the set.

When it was his time to sing, he launched into Two Little Boys, but when he got aling a bit he began hearing the odd titter or chuckle, in places when there should have been only respectful silence. He gutted it out and turned round to bring the next guest forward, only to observe that one of his guests, an artist in his own right, had drawn that now-familiar cartoon showing two kids in diapers, each with the front of his diaper pulled forwards, gazing down his front at his plumbing.

    Dave