Shes a stupid girl.
Yes, you aren't suppose to take out the nossle. Your just igniting gas fumes. You go inside and have the clerk turn off that pump from inside. If you pull out the nossle, it will ignite the gas that is coming out, or the gas in your tank.
But, you are not suppose to go back in to your car after you have started pumping gas. That is why she generated the spark.
They need to make gas nossles have better seals.