where did the facts come from?

[bflyw.livejournal.com]

There are some well established facts about Nick and Greg, that 'everybody' writes in their stories. For some of the facts, I wonder where they originally came from. So I ask you here, do you know the origin of these facts (please name the episode if there is any…)?

1. Greg having fish.
2. Nick being a cop in Dallas before moving to LV.
3. Bobby being gay and having a daughter.
4. Greg’s car…

For the Gregory Hojem Sanders fact: (I have also used this one in one of my stories), but the truth is, Grissom says in let the seller beware: "your mother's middle name is Hojem..." indicating that Greg in fact is not having that name.

Hm.. that is all I can think of right now. I probably remember a few more things as soon as I have posted…