My brain suddenly went dead today. I was waiting for the number 36 bus and it wasn't due for another 4 minutes. I continued to surf on my mobile. Suddenly a bus rolled up. Number 36. I thought, am I waiting for 36 or 63? I wasn't sure. By the time I figured it out the bus had gone. Damn! I ended walking to my destination, which to be honest was only fifteen minutes away. No big deal. Maybe I need to do more excercise.
