I think Mr. Liu's title explains the issue well enough.
I read a humorous article by Dave Barry as to what, exactly, ants were doing
with the CPUs they are invading. We can only assume, he says, that after years
of our efforts to exterminate them insects are up to no good.
Intentional mischief aside, I've read of a recommendation that such plagued machines (don't laugh now) be shrouded in panty hose. Reportedly the Queen size works best and
avoid those with cotton panels (after all, mycobacteria is not a concern here)