The issue of how all of the friends make fun of Ross's profession has come up in a number of threads now, but I don't think that's the real problem. Even if I had a friend who worked in a field that I would consider as lame or boring, I still wouldn't make fun of him, especially if he were as close a friend as Ross is to the other 5. After all he's their friend, so why do they have to mock him because of his profession? They seem to like hanging out with him or having him around, so he can't be that geeky or boring when he's off work. I myself sort of agree with the basic idea that paleontology (sp?) is not interesting at all, but it's not like Ross is only capable of talking about work related stuff.
Furthermore, there's one scene in 804 that really bothers me, it's when Rachel asks the group who of them believed Ross that she came onto him and not vice versa. None of them believed it, not even the guys. They are his best friends and yet none of them believes him. They could have at least pretended, especially Chandler, since he didn't have to worry about a room mate having a go at him, like Joey may have had to at that time. Another example where no one would believe Ross even though he was right is TOW the screamer, so this behaviour towards him has quite a history. Can anybody think of more examples? Or am I reading too much into scenes (like other people who jump up and down, because somebody entered Central Perk 14 seconds after Phoebe said the she was supposed to meet a love interest ;) )
I also think that some of the jokes because of the three divorces are a little rough, given that he couldn't do anything about the first one failing, messed up the second one even before he got married (although only because all of a sudden Rachel was there), and the third one - well that wasn't even his idea and he was drunk for crying out loud. The whole group knows perfectly well what happened during his "marriage" with Rachel and how this divorce instead of the anulment came about, so they should know better than to make fun of him.
I'm not saying that Ross is an innocent angel as far as his failed marriages are concerned, but IMO you can't blame him for the failure of his first marriage at all, he needs to take most of the responsibility for the second one, although after the wedding he tried everything to get Emily to forgive him, and I think one should blame Rachel for his third divorce - not for the wedding/marriage. They got married while they were drunk and didn't know what they were doing. At this point Rachel could have shown that she had grown as a person and agreed to a marriage like Phoebe had with that ice skater, since the idea of being divorced again wasn't that appealing to Ross at all. Instead she forced him to get an anulment as soon as he could (which he didn't and that's the only aspect of this divorce, that I'd blame him for). Since he didn't get the anulment, she actually made up the worst possible lies about Ross just to speed up the official process and ended up getting her first and his third divorce. She was way over the top with her behaviour here and AFAIK none of the other four cared to say anything about it to her, which is probably even worse.
Just a few thoughts I had wandering around in my mind (and also I have to do /something/ at work ;) )
Andr�