How the bear got onto the bicycle, I’ll never know.
cf: Marx, Groucho: “I once shot an elephant in my pajamas.”
I am chagrined to see that this is my first ever Groucho reference here at Collateral Damage. I apologize to my readers and promise to do better in the future.
PS: Walt Kelly’s birthday was last month and I forgot to mention it. Again, my apologies. Why is it this book title never goes out of date? 
Collateral Damage 
Have you ever read the book “Eats, Shoots, and Leaves”? It’s a great read on grammar and especially punctuation problems that have caused humor and calamity.