I am here but not here

I am still working part-time at the busy office where I am employed.  From time to time, like other colleagues, I would be at work even on a day that I am not suppose to be at work.  During a day when a colleague comes into work on a day off, I would hear them say something along the line of "I am here but not here".  Yesterday was such a day for me.

Before going into work, I thought it would be wonderful if I had apparel as well as a seat cover that read "I am here but not here" so it's even more clear that I am working an extra day.

I don't mind working an extra day because I like to finish my work and I am not suppose to be there so I am more relaxed.