Tyres

There seems to be a tyre thing going on. My car had a very flat tyre one morning about 3 weeks ago. It's always when you are in a hurry. It had a big nail stuck in it and also a bit of a slash on the side. So that was replaced but nobody, including me, checked the others. That is, until I did the night before the MOT and found another one rather worn. So tyre number 2 was purchased yesterday.
This evening I go along to the gym and found these old tyres all laid out. I couldn't help checking to see if one of them had belonged to me in a recent life!
This is an attempt to tell us they are running a boot camp! I think I might need my spare tyre so I didn't sign up!