Is this typical tank behavior in DF dungeons?

[Lambdafish]

I don't care what you say my rights are. I can just as easily say the tank had no right to throw a tantrum and quit. I can also easily say DPS and Healer have every right to move ahead if they can handle it and the tank has no right to get emotional about it, especially at the bottom level duties where a tank isn't even needed. Or what, am I now encouraged to quit teams that go ahead of me every I tank now too? Do you approve of me having this right?

I also don't actually care how you play the game, only how the game is designed. If you want to move ahead and leave a player behind, because "you can", go ahead, but you are responsible for the consequences and who you disrespect because of that decision. You come across like you shouldn't need to think about the tank at all, and the only experience that matters is your own, which when combined with what you just wrote about who you think is right says a lot about the situation. You said that the tanks job is to lead, but also that you wouldn't let the tank lead, and that nobody was wrong except the tank for leaving.

Again, I'm not emotionally invested in any of your dungeon runs, but the fact that you are here on the forums defending your actions and treating yourself as the victim, even after being called out several times, to quote Metalwrath:

sums up whats wrong with the community.

Edit: To more directly answer your question, because for some reason this is needed, if the DPS and healer go ahead of you when you play as a tank, and you leave, that is a right that you have, because:
A) You feel that taking the consequence of an extended timer is preferable to dealing with a toxic party
B) It falls within the GMs definition of "differences of playstyle". (Though in this case, the tank played the game as intended, and you decided not to, causing point A).