Feeling a bit of a

Feeling a bit of a plank at the moment. Was walking hurriedly down South Street this morning, towards the station, and as fast as my legs would go as I had been a little late leaving home. Being mentally miles away, thinking about the day ahead and the possible prospect of missing my train, I walked straight past new friend Sally who was looking straight at me and smiling a greeting, and only realised when I was 100 yards further on. This was particularly dumb, as Sally is not only a new friend, but also attractive, blonde and single.
Oh well, I’ll have to buy her a drink when I see her next to make up.