Sister- Ah, what does "bless you" mean?
You- It doesn't mean anything anymore, it's polite social etiquette
Sister- Ah, but it has pagan origins!
You- What's that ring on your index finger?
Sister- But no-one associates that ring with paganism today
You- A bit like saying "Bless you" you mean. I've heard you say "Goodbye". Did you know that means "God be with you", another form of blessing?
Sister- I'm just trying to help you.
You- Bless you. Goodbye.