Dogs that have been rehomed from rescue centres are increasingly ending up on this site when things don't work out. Certain breeds, such as Greyhounds, Staffies or other hounds or terriers can often end up in unscrupulous hands, particularly being used as bait dogs in dog fighting or used in illegal hunting practices. Animals are not commodities, they should be taken to rescue/rehomoming centres if things don't work out, not sold off on internet sites to whatever fate awaits them. Do the right thing all you internet sites and stop advertising any live animal now.