Sometimes, just walking up Twynhams Hill, feels more like climbing Everest. At others it’s a breeze and I don’t even notice it. It struck me today, as I almost sauntered up the incline with one of the dogs, that life is a series of hills that we have to climb. Sometimes they are steep, sometimes gentle and the same slope you climbed effortlessly yesterday can seem more difficult to get over today. Today, I took our four and a half year-old border terrier, Charlie, for a walk. When on the lead, Charlie has issues when he meets another dog coming towards him. He goes into panic mode and begins growling…