What's the BEST line you NEVER used on a Christian but wanted to REEELY bad...?
My fundie ex-mother-in-law once handed me a "letter from God", it was a project their pastor had given them, to write a hypothetical letter from God to themselves, and what they imagined God would say to them and about them, what advice God would give, etc.
It was all pretty mundane stuff, hardly worth commenting on, but the first thought that entered my head (but did not pass my lips) was...
"For the creator of the universe, God can't spell worth a damn...."
Had to bite my tongue to keep from blurting that out...
I was arguing with a Christian one day and she said "If there was no God, then nothing should exist. Where is this void?"
I almost replied "Between your ears", but I thought better of it.
I sometimes like to jack around with Christians and say "One of the men I admire most died on a cross."
(their eyes light up, all expectantly)
That was only in the movie. In real life he died in battle but Hollywood can't leave reality alone.