Tea Really Does Have Caffeine...
It takes something really disruptive to begin to notice the caffeine in drinks when you have built up a strong tolerance to it. Like being under attack by bacteria and being off caffeine for a week.
Since I'm an espresso drinker I almost never notice a buzz or any increased levels of attention when drinking tea, but today I knew I couldn't handle the coffee today so I tried a cup of black tea. I could feel the caffeine like "voltage" from head to toe. Very strange.
I was also was thinking more about the marathon coming up in a few weeks and was describing my role as an escort for the wheelchair racers like this to a friend:
"My task, basically, will be to keep up with these guys/gals (who average over 18mph!) and knock witless pedestrians out of the way who don't notice them coming. We'll be followed by the Kenyans, then the rest. Should be good fun."