I don't have experience with a nut in the head. On the otherhand I have left a T-shirt sleeve in the valley pan for 5000 miles. Thank god it didn't get sucked out into the motor. I found it when I went to re-seal the valley pan...Think God was trying to tell me something when the valley pan started leaking.
I must say thanks for the best laugh of the week. My wife got a good chucle too!!!!