Good point JR. I NEVER leave my computer on when I'm gone. Don't leave the D/W running nor the washer or dryer either. And as long as we're on the subject of safety & fires etc...
This has happened to my DH twice: he cut his thumb or finger & put liquid band aid on it. Well it dries & is sort of like nail polish on your skin. Watch out! It's still flammable as all get out! DH used a lighter & it caught the liquid band aid on fire right on his skin. He didn't make that same mistake a third time.