An artist asked the gallery owner if there had been any interest in his painting exhibits.

‘I have good news and bad news,’ the owner replied. ‘The good news is that a gent inquired about your work and wondered if it would appreciate in value after your death. When I told him it would, he bought all of your paintings.’

‘That’s wonderful,’ the artist exclaimed. ‘What’s the bad news?’

‘The guy was your doctor.’