Shortly after we had passed Vulture Peak Elementary School (and I am not making this up....) Lois had a character building experience when her rear tire hissed loudly when a piece of glass punctured it.  She got right into it as Elizabeth and I tried to lend assistance despite the fact that she had it all together.  Jan and Marnie, flat changers extrodinare rode up and helped with the last steps and we were on our way.