One day fine day with my CFI I was cleared to land on a straight in approch at our tower controlled OLM. The guy in the tower forgot about us and cleared a bussiness jet for takeoff when we less than 1/4 mile final. The Jet started to pull out onto the runway and I was so busy concentrating on my final approch to understand what was happening. Fortunatly my instructor calmly reminded the tower and the other traffic that we were on short final. The jet stopped and we went around.
Now if it wasn't for my instructor, both the controller, jet pilot and student (me) could have had a very bad day. The weather was great, the other pilot should have easily been able to see me just fine if he had been looking.
That was a very good lesson to me in situational awarness and "see and avoid". Funnly thing is that I asked my instructor before the flight about go-around proceedures.
I guess my point here is that without diligent attention in the pattern we all can get into trouble. I always take a second or third look before pulling out onto the runway regardless of what the controller has to say, and I look high and low on approch.