Always be careful at "assuming" where the ceiling joist are in the attic. I was rewiring a paritally "demoed" house. Went up in the attic to pull some wires. It had insulation laying in between the joist. As I was on my hands and knees, I was moving pretty good until I put my hand where I thought there was a joist, because of the edge of insulation was there. Wrong. My hand went through the ceiling, and of course I was on my way down. Fortunetly? My jaw caught on the joist and saved me from going on through. Ouch! No real damage to the house since it was being remoldeld anyway, but shook me up a bit. Steve
