When we were young and stupid, we would often see a dog walk down a village pathway then suddenly stop, lift one leg and pee on some bush, pole or blade of grass.
What we never knew and were not told was the dog was simply marking its territory. He would use the pee scent to keep other nosy dogs from invading his territory and meddling in his ‘affairs’. The scent told other dogs foolish enough to try mating his bitches one thing: FFU - Fanya Fujo Uone.