HORRID DAY AT WORK

Today probably is the worst working day I had in IPTO, where I worked for nearly 9 months. I had loads of work to do and they all came from the additional workload that was given to me from another colleague. So sad...I din even have time to do my own cases...sigh, life is sad. When u think tat u hv settled down and become familiar w wat u do, more things get thrown at u. Does this mean tat efficiency will breed more work???? Should I then slack more n work less so tat it will appear that I am busy (this is wat some pple do)?