This first is one of my favorites in the Contradiction category.
One winter day I a few years ago, I was back home in Glencoe, about 30 minutes north of Chicago on Lake Michigan. I went wandering around town and eventually make to the village center, from where I headed over to the beach.
I much appreciated the sign informing me of the current status of things. Though alas it ruined what was planned to be a perfectly lovely day on the sand, and I had to put my flippers and snorkel back.