A couple days ago, the rear tire on my bike went flat. I had to walk it home from the park.
Today, I was feeling lazy: I walked it out to the bike shop and bought a couple of new tubes, and had them put one in for me. I then hopped on the bike and went to the park again to ride around and enjoy feeling like the rear of the bike had a nice, firm grasp on the pavement, instead of mushily slewing around all the time.
On the way out, I suddenly heard a loud PSSSSSSSH. At exactly the same corner my tire went flat on two days ago. Complete and total deflation.
Really all I could do was laugh. I’ll take it home tonight and have a look at it. Might actually use the patch kit I have sitting in the under-seat bag instead of being lazy.