Well, I've done some of both. Depending on your definition of "bricked", some of these may not count.
1. My old computer's CRT monitor died. Twice. On two seperate occasions. While I was playing RollerCoaster Tycoon. (The first series of the game, not the later ones)
2. My old GBC GameShark decided that it didn't want to work anymore. It will load up, let me input codes and stuff, but, as soon as I get to the game, if the gameshark is turned on, the screen goes gray and nothing happens. I can't restore the firmware or fix it in any way. I think it happened when my brother was using it to go off the edges of maps in Pokemon Yellow. Did you know that actually causes the game (and Gameshark) to crash? As in, fatal error, BSOD level crash?
3. My little bro was playing with my first GBA, and, when I found it again, the screen was all crackly looking, and it fizzled when I turned it on. Did you know that the chimals in each pixel of an LCD screen are black when not supplied with any type of power, and are not being confined?
4. One day, I pulled a mini fridge out of my closet and try to plug it in. (I won it in some contest years ago) When I plug it in, there's a bright flash, and it started smoking. With its own cable, no less.
5. A whole bunch of other stuff I can't seem to remember, for some reason.