Short on time, I dropped a pyrex bowl on top of him, slid some paper under and walked him outside. I had to get to work, but I wanted to examine him later to figure out just how many exterminators we should call.

Early Wednesday morning I was disappointed to find, relaxing on the white rug in our living room, a big cockroach.

When I returned from work, water had condensed on the inside of the bowl. A lot of water.

The spot where I left him must have been struck by direct sunlight and he was baked.

The white paper on the ground had also absorbed some moisture, but I didn't bother to weigh that.

Next I wiped out the inside of the bowl. Hopefully the paper towel now held most of the water from the cockroach.

I cut a little square of paper towel and set it on a scale. With the dry paper towel on the scale, I zeroed it out.