A man goes into a pub with a cat sitting on his head. The barman pulls him a pint and says,‘Look I don’t know if you know it but there’s a cat sitting on your head.’ ‘What of it?’ asks the man.‘I always wear a cat on my head on a Monday.’ ‘But today’s Tuesday,’ replies the barman. ‘Oh God.Is it?’ says the man. ‘I must look a right prat.’