Not if you add slaughterfish they can't. What content, anyway, fighting the same bosses for the 100th time?
Edit: If you don't want to skip, ask your groupmates not to skip. Run with guildies or other people who will agree to your request. What you're suggesting is a heavy handed approach that will only benefit the few.
No. Too boring after the 100th time thru there.
If you want to kill everything, stay in the dungeon and do that after the last boss is killed. That's what I do if I'm levelling a character and want the kills for XP.