Sabotage

I was about to fall asleep. I was tired after a hard day's work. But suddenly my phone rang. I did on my ring tone that it was important. It was my wife called and she wanted me to come. She had gone flat on one tire, and she did not know how she could do to change. What do you do? Although I was tired I took my scooter and drove off to the place where she was was. Anything can happen if you are not careful, but this time it was not her fault. When I changed the tire, I noticed a nail in the tire. Someone had put out spikes on the street to sabotage.