Watch: From the 'world's worst sniffer dog' to NHS heropublished at 12:48 British Summer Time 28 March 2021
Dexter the dog was sacked as a potential drug-sniffer because he was "too sociable".
He was training to be part of the Metropolitan Police's anti-drug squad but after failing the programme, they found him a new role as a "wellbeing dog".
Now, he helps officers relax following tough assignments and has been visiting hospitals in the hope he can offer Covid-stressed NHS staff a chance to unwind.
Dexter was too nice to be a sniffer dog, so he's been given a new job cheering people up