Well, I’m 61 and have been walking customers’ and my own dogs since 2010 and before for my own. I was doing at my busiest, 20,000 steps a day. Before that, I had nearly seven years in the Police, mainly patrolling on foot on the London Underground. God knows how many steps a day I did then. Nowadays, I do about 8000 to 10000 a day for work. Unfortunately, I’ve just found out both my knees are ‘shot’ and have been struggling on in agony some days at work. It is certainly one new knee for the worst one, with a second ultimately for the less damaged one. Not being able to walk dogs horrifies me, to be honest. It has been a large part of my life for so long. I also need the money - although I do get an NHS pension after my wife died. I’ve got through worse, so just have to deal with it!