It's a dominance thing, its psychological pleasure.
How revolting. I have no idea about the cramps.
And you should do whatever you want to do next time. This is absurd.
I don't know. Dogs who are somewhat tame tend to like me.
I'd prefer to break the owner's neck and then put the dog up for sale saying I found a stray :D
There are two black dogs that run into my yard and growl at my own dog though, and my neighbor just lets them run around. I'd prefer to see...