The Instructions On The Pre-packaged Food I Cooked Tonight For

The instructions on the pre-packaged food I cooked tonight for dinner made it seem like the meat should be cooked it in its container. I'd never had it before, and although it smelled fine, it tasted DISGUSTING! After two terrible bites I brought it back into the kitchen and switched on the overhead fluorescent light only to discover that the container was melted and deformed! It should never have been in the oven regardless of the criminally ambiguous cooking instructions! Naturally, I threw all of out as I'd never even CHANCE ingesting melted plastic, but honestly, should I be concerned? Should I make myself vomit? How bad is this? I ate two full bites!