> In the hallway --- and I've never seen this anywhere except that house --- there was a furnace under the floor, and there was a grating on top of it. You could stand on it, and if you didn't mind the vague discomfort of the grating in your feet, it was very nice if the day was cold.
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> -Eric Sleator


My little brother (I say little, but he's 21 and about 6'1", 230 or so) still has scars on the bottoms of his feet in the shape of that kind of grating, from when he tripped and didn't fall, but landed on his feet on our floor furnace grate when he was about 3.

Moush