A modicum of common sense and a willingness to put aside your determination to ignore the DM's 'no you can't' in exchange for not being a disruptive influence upon the game in general.
Once a DM says 'No,' and you've made your point clear, there's a certain point where it's no longer rules lawyering and it's just whining and verbally browbeating a DM, holding the game hostage for the other players, until you get what you want. It's a childish temper tantrum at that point, and it's a disservice to the hobby.
That sort of player doesn't get to come back next session.
heres my point:
me: I get to attack the badguy because of my mark!
dm: sorry, the badguy hasn't actually triggered that ability. (shifts badguy away)
me: I get to attack the badguy because of my mark!
dm: no
me:uh, he triggered the ability, don't I get to attack?
dm: no, you get to ask if you can attack. you can only ask once per round though. Therefore you cant ask again, now, which means you cant attack. but you would have if you hadn't asked the first time.
me: I think your confusing me with my character. for example, I have technically allready asked twice, and could ask again (technically) many times. To me it sounds more like you would like to ad-hoc that invisibility grants immunity to opportunity attacks *and* free attacks from a fighters mark...
dracosuave: You are a big baby!
me: *You* are a big baby!
dracosuave: No! you are!
me: ok, im a big baby.
dracosuave: No! you are a big baby!
me: (to the dm) you guys related?