A terrier once hitchhiked in my car to the park and after I asked it for consent to lovingly attach a leash and escort it kindly to the park, it started being aggressive towards other dogs (totally self defense).

(Also btw I adopted this dog from an farmer who forced this dog into servitude and made it kill rats that were spreading disease in the community. The audacity of this man who claimed the dog "enjoyed his job") anyway...

"Is that your dog?" Someone asked.

I responded "My dog? How offensive! The dog is is owned by no one!"

This miserable person at the park then said "okay, just making sure because I'm with animal control and for the safety of other dogs and human guests we'll be taking this apparent stray out of the park."

Me: "Don't touch my dog!"