IT tech here. I recently had a Dell laptop I unboxed, plugged in CAT5 and power then turned on. Walked away for 5 mins. Came back into my office and smoke was billowing out from the center of the keyboard! I yanked out the power adapter and kicked the fucker into a plastic box and RAN it to the bathroom where I threw it into a sink and waited. It didn't full on combust but the keyboard was melted and so was the bottom. Dell didn't want to hear ANY of it. They immediately wanted it sent to them. Manager made me just send it back without complaining further. They replaced the keys and mobo and SENT THE FUCKER back to use. Still singed an all. I should note that we open 10 or 15 new Latitudes a month. THis was the only firebomb we've had.