glad you're okay. i once by accident put a metal bin in the microwave at work, to dry it quicker...it arced and spat too and i had to tell the boss that i wrecked his microwave - he was laughing and we tested it and it was fine :D

but your story - thats a major reason i dont microwave any plastic container. Even the safe ones will throw off phito-estrogens into your food, and if you're like me, you dont need more estrogens. And bits of plastic too - just look at what the containers look like after a month of microwaving...cant be good for you.