When I am walking on country paths, and dog owners have their ( sometimes big and aggressive looking dogs, off lead, and not under control, run up at me / my wife, who is scared of dogs. The dog owners are sometimes 50- 100 yards away, and seem to assume you are happy to have their dog run up to you, bark at you, intimidate you / jump up on you, while they shout " He's only saying Hello, he's soft as my pocket, he won't touch you." ), as their dog sniffs your crotch deposits saliva and snot on your groin area, and mud, and / or sh1t on your trousers as it jumps up on you.
I feel better now getting that off my chest!