I forgot about the popcorn, and only remember when I got up and noticed the smoke. It was so bad that it set off the fire alarms. Not once, but twice. The alarm company called to make sure we were okay, and if we needed assistance. Needless to say the entire house was filled with eye burning smoke. My microwave was a mess, and the entire house had the acrid smoke smell in it. We opened up the house and turned on all of the fans, but we still get a whiff of that smell. This "dumb ole girl" as my hubby called me was beside herself. I have used vinegar, lemon juice, and just about everthing to freshen the house. I have never burned anything in the micorwave before - too bad my first time was such a mess. LOL