
FuelDrop |

The problem is that this isn't "just" a risk of your character flipping out and doing serious damage to friendlies or civilians.
The problem is that even if you flip out and get put down in self defense, odds on you're going to infect another party member and it all begins again. I'm going to say that IC the rest of the party is either going to insist on hog-tying you and going to find a cure and bring it back, or put you down, cut your head off, burn the body and scatter the ashes.
I'm going to suggest a third option:
Hypnosis. Get your local arcane caster to put you under hypnosis (voluntarily fail the save) and implant a suggestion for you to don manacles and a muzzle if you transform. Not a great option, sure, but it's a failsafe that they're likely to be willing to accept and will not screw you over too badly.

soupturtle |
As has been said before, these will saves are doomed to fail. So you need to make it easier for your party to keep you under control when you do fail, or the rest of your party will probably not want you around.
It's a shame lycanthropes don't seem to be particularly vulnerable to anything in pathfinder. I was thinking of something like wearing silver shackles that are fairly loose in human form but constrain you in werewolf form, but that doesn't really work with the rules. Maybe you can voluntarily lower one of your saves, a lot? If you can manage to contract some dexterity damage you might be able to lower your reflex save to 0, which would give your party casters a very easy time at catching you with a create pit spell, but still no guarantees. That same dexterity damage would also make it pretty easy for your barbarian to get you into a grapple, pinned and tied up, although that would expose said barbarian to a serious risk of being bitten, so he'd have to be confident of his fortitude save. So maybe trying to lower your dexterity to something like 2 would be a reasonable way to give your party a good chance at controlling you. It will weaken you in combat quite a bit in terms of defense, but your damage output will still be fine.

Lacdannan |

At 7th level, take leadership instead of extra traits and get yourself a lunar oracle follower with the Mantle of Moonlight revelation. If you freak out, he taps you on the shoulder and reminds you to behave for a few rounds. Long enough to pull the shackles and muzzle out of your pack and put them on.