When I worked at Calvin College, the plant manager decided that the presidents house needed a new roof. And since the roof already had two sets of shingles, the staff was instructed to remove both sets of shingles before putting on the new set of shingles.

Once the shingles were removed, the plant manager told the staff to cut holes in the roof so that insulation could be blown into the attic. The idea was to cut holes in the wood of the roof, blow in insulation, patch the holes and apply the new shingles. And so, the staff complied.

Every few feet, they would drill a hole in the roof just big enough for a sawsall blade. Then, they would cut a square hole and remove the wood.

Well, all was going fine until they got to one part of the roof where the wood seemed to be quite tough. They replace the blade in the sawsall but it was still hard to cut.

Thinking that something must be wrong, they proceeded to climb into the attic to check it out. But when they got up there, they couldn’t find where they were cutting.

Upon further investigation, they discovered that they were cutting over a part of the house that had a cathedral ceiling. Oops!