Yeah I've actually heard people praying things like, "Dear Lord, please guide the surgeon's hand as he operates on our loved one..." They know that praying for a tumor to disappear won't work one bit. This is why it drives me crazy, because if a tumor were to disappear on its own, of course they'd credit God with a divine miracle. But it's just so frustrating that they can't understand that praying to God to help the surgeon (or scientists) cure people is just the same as if there were no God and the surgeon/scientists were using skill and scientific method to practice medicine.
Christian apologetics is the art of rolling a dog turd in sugar and selling it as a donut.