My housemate did that. Frankly I think its a silly idea.
Imagine you've placed a drink by your comp, sh|t happens.
Hey, its your comp.
Why I think my housemate is silly is coz the ambient temperature here is lower than in Singapore, so his comp is always at a nice temp.
Then his room has a sliding door with a loose manifold that drops down on his comp if he hits the door. It's dropped countless of times already, I tell him to put the loose piece elsewhere. But he seems to enjoy that heavy piece of metal landing on his comp. Oh well.