I usually let consoles explode purely for dramatic purposes, however, when any of my players roll all 1's on their dices I make some hardware go nuts on them. I do this only for the reason that the console explosion does 3D6 damage, could easily hurt and could kill an unfortunate PC. Getting a one on the ol' drama dice happens fairly often for my players.
My computer blew out its power supply roughly a week ago, damaged the rear casing of my tower and a fair bit of damage to my hardware inside. I haven't yet seen exploding equipment, I'm hoping I won't either.
"The misery of being exploited by capitalists is nothing compared to the misery of not being exploited at all."
-Joan Robinson, economist