Some things, I'm not so willing to let go of...and some things in my fanon are just bizarre.
For instance, I really like to believe that Dean's middle name is Marion. I think it suits him. Now, there's absolutely no evidence that the boys even HAVE middle names, but in my head Dean's middle name is Marion and Sam's middle name is John.
And there's your useless bit of information for the evening...sometimes even a canon-crazy person such as myself makes up their own fanon and doesn't really want to let go of it.
On a somewhat related topic: Years and years ago, there was an interview done with Jensen, and in it he basically implied that in HIS personal fanon, Dean used to...well, be a prostitute from time to time when he was younger. Anyway, I have never been able to re-find that article. I remember I found it on a webpage with a pinkish background and that it may have been for some Australian TV guide type magazine, but then again, maybe it wasn't. Anyway, if anyone remembers this article better than me and can maybe find it, please let me know!