Whodunnit

My birthday today. 68 years young. I went for a ramble with this lot this morning. I took a box of Heroes to share. I was handing them out when someone asked whose bag was floating down the river. It was mine. I’d left it on the bridge. One of these mean old people must have kicked it in the water while my back was turned. Remember the cat bin lady years ago. I think at least one of these people have mischievous tendencies.