I’m not very knowledgeable about dreams but I’m under the impression that they involve compelling situations. Is it possible to dream you have a boring job to do which takes hours?
And can they involve an extended lack of patience?
I created a thread in General Questions
http://boards.straightdope.com/sdmb/showthread.php?p=16975252
So this thread can be closed.
IMHO its probable that you only remember more interesting ones because you wake up that part of the brain with all the REM period activity - thats why you only remember some dreams, while you have REM every sleep.
Most dreams are boring. I usually remember mine when I wake up, and they’re generally nothing interesting enough to share. Of course, not only are most dreams boring, they also often don’t make enough sense for people to put an effort into remembering upon waking, too.
Mine are generally quite boring. They usually involve some perfectly mundane task, like grocery shopping, or getting ready to leave the house, and the “conflict” is some really minor detail that, for totally inexplicable reasons, cannot be accomplished, like the store is out of an item I wanted or I can’t find my other shoe.
My dreams are generally very interesting, funny, long and complex. I did, however, recently have the most boring dream I could ever imagine, which seemed to take place in real time. It involved my walking the entire length of a very unattractive road in my area, for what seemed like hours. Alllll the way down, then allllll the way back. Nothing interesting happened. Much more “WTF?” than my dreams usually are, just because it was so monotonous.
Now, if you want to talk about Barry Gibb in a wheelchair, singing some ominous dirge and chasing me through Old Sturbridge Village, that’s another story.
To the extent I remember them, they’re usually interesting to me. Recently, there was… where I was in some sort of firefight… pinned down… and my fellow soldier/whatever was having to shoot in such a way that it burnt me… I dunno. That dream was too complicated to much remember, honestly. The dream about the moocow who followed me home and jumped over the back gate to live in my backyard was simpler and easier. 
That said, I’m aware that dreams are mostly interesting only to the dreamer. Which doesn’t stop me from sharing them anyway, does it?