Go, you chicken fat, go away!

27.4 mile bike ride, Usery Pass route.  I decided it would be more fun to do a bike ride today.  As I pulled my bike out of the garage I noticed the tires seemed slightly low on air pressure.  I thought, "It'll be fine."  It was not fine.  I was getting passed by other cyclists right and left.  Well, mostly on the left.  The low air pressure made a noticeable difference in my speed.  It also made the climb more difficult.  At one point during the climb, I had just said to myself, "C'mon, Burt!"  I do that a lot.  But this lady was in the process of passing me and I felt embarassed for having just said that out loud.  Anyway, she went out into the road and had her head down, so she didn't see that a car was passing and she darn near got flattened.  They were honking at her and I slamming on their breaks.  The funny part was I was too tired to even care.  It was strange.  Anyway, on the decent I was able to pick up a lot more speed, but I kept feeling my back tire drag.  At one point I thought it went completely flat, so I pulled over and stopped.  This lady behind me must've seen me because later when she caught up to me she asked if I was all right.  I told her I was fine, and that I thought my tires were a little low.  She said she had a CO2 container and offered to top them off.  It was incredibly kind of her.  There was a big difference after that, but my legs are so dead now.