There's a woman near me who used to have a Rottie pup; never let it off the lead, couldn't hold it as it was totally untrained and used to screech if a dog went anywhere near it (pup was about 18 weeks old last time I saw her with it). Anyway, today I meet her on the park with a Mastiff puppy, also on lead, pulling like mad and she panicked as soon as she saw me with my dog, although her pup was wagging and wanting to play. I made a fuss of him and asked about the Rottie, to which she answered that she couldn't handle him so they'd sold him and were trying out a new one! Turns out this pup is the fifth dog she's had in 3 years as they have all been "too naughty"!!!!
I suggested socialisation and training classes but apparently she doesn't need any of that as she is a complete fucking knob knows what she's doing. Makes me so bloody cross as I know in a couple of months this dog will also be sold, probably on bloody Facebook, and a new replacement ordered. Some people didn't ought to be allowed animals 
Rant over!!