My Nintendo DSLite. I broke it like, 2-3 years ago on accident, and I still haven't gotten a new one.
I had an awful cold, and I couldn't sleep because of the mucas(However you spell) I kept swallowing. So I went to get a full cup of water at 3 AM (I had to get up at 6:30, fun!) After half asleep, I noticed my cat next to the water cup on the table. Afraid of her spilling it, I held the cup until she left. I fell asleep with the cup in my hand, and it spilled all over my bed. Unfortunately, my DS was under my pillow. I played it to fall asleep, and it broke 15 minutes after starting.