The Guardian Angel

A woman is walking on the road and a voice shouts out, "Don't take a step further."
She obeys and suddenly a ton of bricks fall on the place where she would have otherwise been.
She thinks she imagined it and keeps walking until suddenly the voice calls out again. "Don't take a step further."
She stops and a car skids past. Then suddenly she hears the voice saying "I am your guardian angel, and I will warn you before something bad happens to you. Now, do you have any questions to ask me?"
"Yes!" Shouts the woman, "Just where were you on my wedding day!"