Mastiff x Lab

GUS HAS BEEN REHOMED NOW. I'm sad to do this, however my life has changed with my elderly mum moving in with me. She is very frail, Gus is bigger than her, which means Gus is having to be locked in his run all day (it's a huge run), and isolated. I also have a son on autism spectrum who simply can't stop himself getting Gus worked up and then getting annoyed at his barking. I'm at my wits end and Gus deserves to be part of a family. He is such a smart dog...