Andrew Cotter is back with another hilarious voiceover on his two adorable dogs - this time involving a not-so mysterious case of theft.The exploits of Labradors Olive and Mabel have kept social media users entertained throughout lockdown, with the cheeky pair getting up to no good while the BBC man narates.And this time, it appears Mabel is the prime suspect in a case of toy robbery.The Twitter video starts with a guilty looking Mabel clutching a stuffed bone with 'Olive' written across it in