those things should come with lessons.
I was out riding around on Saturday night and stopped for a breather. I saw a nice, shiny new bike locked up and went over to take a look. To my dismay and shock, it was indeed locked...to a pole with a decent u-lock...that was put around the front fork and two spokes. It was a nice, new, pretty decent Trek and it had quick release wheels. So, with a flip of the lever you could have pulled the wheel off, left it and pulled the fork out of the lock.
Jeez! I hung around for a bit to see if the person came back so I could tell them they had better start using a new locking technique, but no one showed. Had no pen or paper so couldn't leave a note either.
I think I had a nightmare the night of a person losing their nice, new, bright bicycle. The horror. I hope you still have your ride and I hope you learn how to lock it!