vernon dursley meets a wizard

"'Sorry', he grunted, as the tiny old man stumbled and almost fell. It was a few seconds before Mr Dursley realised that the man was wearing a violet cloak. He didn't seem at all upset at being almost knocked to the ground. On the contrary, his face split into a wide smile and he said in a squeaky voice that made passers-by stare: 'Don't be sorry, my dear sir, for nothing could upset me today! Rejoce, for You-Know-Who has gone at last! Even Muggles like youself should be celebrating, this happy, happy day!' And the old man hugged Mr Dursley around the middle and walked off." (from harry potter and the philosopher's stone)