Our dog, Ivan, recently gave us a bit of a scare. When we returned home from school, he was dashing around the garden like a puppy, despite being months past his 14th birthday. But, by teatime, he was staggering like he had had one too many, dribbling like a tap, and refusing to touch his food. I feared the worst. You see, he has been a constant in my life these past 14 years. We bought him as newly weds, just a few short months after tying the knot. Since then, we’ve had three kids, lived in six different houses in four different towns, and had more jobs between us than I can count. Besides my husband, Ben, the one thing that has been there every day is the dog.…