It was the night before a very dangerous mission. You were sitting in your room holding the rosary and praying. When you heard the click of your door open, it was Price, Ghost, Soap, and Gaz they had forgotten some of their stuff in your quarters and had come back to get it. They were confused to see what you were doing

Gaz: What's that bead necklace thingy your holding?

Soap: it looks like you're praying, are you?