“Why do dogs run in circles? Because it’s hard to run in squares!” I overheard a child at the park tell this joke and I laughed out loud. I shared it with several other people over the next few days and a clear pattern emerged. Dog lovers found it at least a little amusing, but other people offered a courtesy laugh at best and an eye roll at worst. It seems dog humor is another bond that those of us who love dogs can share. Dog jokes typically strike me as funny even if they are just silly little plays on words.