Why do we fall?

Last night we attended Chas' farewell party. This party, thrown by my mother has become an annual event just before Chas returns to his difficult sojurn in Hawaii. I would like to take a moment to thank Jeff for coming to the party. Oh, wait. Nevermind. Knowing that we would be there late Kate decided to jog the 5 miles to the party, while I drove the kids over. We passed her about halfway there, and she motioned us to go on. After we waited quite a while at the party Kate finally ran in, sweaty and out of breath. 'Nice of you to join us' I quipped before seeing a huge gash on her left leg. She also showed us some road rash on her shoulder, and a nice goose-egg on her head. She had tripped on an uneven sidewalk just blocks from the party and rolled to a stop. The afternoon commute was in full swing, but none of the drivers in the hundreds of cars that passed could be bothered to stop and see if she was okay. After crying for a few minutes she decided that no one was going to help her, so she continued on her way. Fortunately the damage wasn't as bad as it looked, and she was ready to get back to the gym tonight. But from now on when she goes running outside, I will insist that she carry her cell phone.