iserith
Magic Wordsmith
I'll take this one step further. I had this kind of player at my table who would then go on to find ways to betray or sell out the party. Right down to wanting to make deals with the villains sometimes. This person no longer plays at my table and is also the cause of some house rules. Really grinds my gears.
That's pretty dysfunctional. You have to wonder why a player, given how many villains and monsters out there are just asking for conflict, would choose to create conflict in the party.