In Catholicism, if you are threatened with death to convert, it's acceptable to say you convert and still practice in secret. The Church doesn't say you have to die for your faith. However, if you feel called to die for your faith and become a martyr, it shows great, great faith and since we reason you died for God, we also reason you go straight to heaven, no purgatory or fear of Hell.
Yeahhh.. Catholic jokes