Tell them that god doesn't exist. Trust me, if they believe as much as to vehemently tell you you're going to hell for not believing, they'll be really mad if they hear someone saying god doesn't exist. And if they punch you in response, don't fight back - Sue them for a compensation.
[This is how we lawyers make money]
[This is how we lawyers make money]
Whoever fights monsters should see to it that in the process he does not become a monster. And if you gaze long enough into an abyss, the abyss will gaze back into you