Well it happened, I picked up a piece of metal last night which caused my rear passenger tire to go flat. I have only about 1200 kms on these snow tires. I just want to say that I am glad I had a spare tire to throw on to get me home. It only took about 15 minutes and I was back on the road. It really bothers me that many car manufacturers are opting not to include a spare, which in my mind is a safety concern. Now I must say that I have never used one of those miracle tire repair machines that are included instead of a spare. So maybe I am way off base and they are easier and better than a spare. If that's the case, forget my rambling here!!