First there was the boy of 11 quizzed over an e-mail calling his schoolfriend gay.
Then came the five-year-old told off for playing hopscotch after chalking on the street.
Now, just when you thought police over-reaction had reached its height, we present the couple investigated for joking about squirrels.

Shortly afterwards, there was a knock at the door of the couple's home in the Lake District village of Thackthwaite, near Penrith.
Two officers from Cumbria Police informed them they were investigating claims of squirrel abuse.