Dogs are dick magnets
I believe this is true. Just this Saturday I came out of a coffee shop and saw a guy at an outdoor table with an adorable Shepherd pup. So I asked the owner his age (3 months) and complimented his appearance.
I wasn't hitting on him, my partner being still inside, and I'm strictly monogamous. But having read this thread, I could believe this owner (in uber-gay Wilton Manors, FL) got lots of guys approaching him, and that may well have been his intention in being there with the cute puppy.
And I think that may also be the motivation when I see so many single guys bringing their dogs to outdoor gay-themed events like Pride, when I otherwise would have thought: why bring your dog to THIS? What enjoyment could it get in walking miles on the sidewalks and roads, in heavy crowds of people? Now perhaps I may have that answer.