When DS was nearly 3 and at his tantrummingly irrational best, we were on holiday in Norfolk (which presumably has a ponce-ability rating itself) and I told DS we needed to go to the supermarket. He burst into tears in the entrance to - gulp - Safeway and started whimpering "I thought you said we were going to Waitrose". (The ponce-ometer rises).
And I told that story to the Chairman of WAitrose over dinner (Ping - the ponce-ometer hits the bell at the top).