For many young people, dogs are increasingly viewed as a commodity which can be traded up or down like a mobile phone.
It has become less about whether the dog will fit into family life and more about, 'What will this dog do for me, how much will it make me?'.
Through their reputation for aggression or ability to intimidate [bull breeds] are also used in drug deals, gambling debts and loan-sharking, where their owners do not have recourse to law if the money owed is not paid because his business is illegal.
The dog says, 'I am here to be taken seriously' - it acts as a 'minder' and a 'heavy' when collecting dues. People believe that possession of an aggressive dog means that the threats posed by such men will be carried out.
More top news
Fresher and cooler as we head into the second half of the weekend.
Leah Washington, 17, had to have her left leg amputated after being trapped for hours on The Smiler rollercoaster at the theme park.
The video, obtained by ITV News, shows scores of migrants desperately trying to board lorries in a restricted area within the tunnel.