Now unwanted dogs are being given a second chance to become man's best friend.
A new series from ITV focuses on a training academy in the hills above Bridgend where all different kinds of dogs are put through their paces - learning to sniff out explosives and drugs.
Crufts it is NOT, but the animals and their trainers love the work.
If you're in Wales, you can watch the first episode on ITV tonight at 8pm
More top news
Homes on one of the UK's most polluted streets could be demolished in an effort to improve air quality in Caerphilly.
The First Minister is in Edinburgh to discuss shared concerns over the Withdrawal Bill with Scotland's First Minister, Nicola Sturgeon.
A cloudy picture to start with but also some sunny spells around. Feeling rather humid out there.