science experiment gone awry

Have you ever wondered what it would smell like to put your head in a trash can that reeked of rotten eggs that had been sitting in a heated enclosed small tight space?  That is exactly what my 8th grade classroom smelled like Monday when I went there for 5th period.  I had my 8th graders make a 3D model of a cell. I told them to use craft or recycling items to make it.  One girl said her mom told her to use a plastic container, cracked raw egg, peanuts etc. instead.  Needless to say she won't get full credit because she didn't follow directions.  WOW!  What a stink.  I had to hear all about it until the room aired out.  Those kids need to get a stronger stomach too.  : )