I have to stand up for Norman Wisdom here. Most of the stories about him came from neighbours, and a housekeeper, who was suspected to have been stealing from him so was dismissed by the family. The man had senile dementior. His family tried hard to look after him, but it became impossible. Like a lot of us in this situation they made the decision to move him into a care home. Then the nasty rumours started. As far as any one knows he was happy in his last days playing the piano for other residents and telling stories of his past. We met him in 1999 at the big celebration at Pinewood Studios. He was slightly over the top there, He 'helped' with the raffle and it could still be going on now if someone had not called a halt to his nonsense. I imaging his dementia was showing itself then, and I am told that this condition can turn a person to violence through frustration, so perhaps this was what was meant in the show your mother watched, ****.