My recurring nightmare involves wandering around an empty house trying all the doors which are locked, but when I get to the last door I know it's unlocked but I'm afraid to open it. I have this dream a couple of times a year.
I'm usually trussed up in a pink tutu amongst a troupe of ballet dancers in perfect step, trying desperately to keep up, but, to the amusement of the audience, always a few steps behind :-)
One I used to have occasionally was about football. I was running down the right wing on to a pass but could never, ever, EVER quite reach it, and it all happened in slow motion. And why the right wing? I could no more cross a ball with my right foot than I could speak fluent Basque. It was for standing on. Not a very good footballer.