What are your consequences for misbehavior in class or lab?

 My husband and I teach Co-op Science and Math classes.  Guess what?  Student misbehave!  I know you are shocked!  We have tiered consequences.  If the misbehavior is minor, we assign 15 minutes of cleaning, usually vacuuming the rugs in the basement or mopping the stairs.  If a student removes his or her safety classes during lab, he or she cleans up everyone’s lab stations and washes all of the equipment.  Last year, we had a large and naughty group.  We had a whiteboard with consequences for misbehavior.  I look for jobs that need to be completed: pencils sharpened, kits sorted, labs pulled, boards cleaned, models created, etc.  If the behavior is egregious, such as pretending to stab a lab partner with a scalpel, the consequences are greater.  In fact we treat lab misbehavior more seriously.  Teens know they should not dangle dissection pieces in their classmates’ faces.  No one should dare another to drink a solution.  (I have threatened to ship any kids who drink a chemical solution to the ER.  I would ask the ER staff to empty their stomachs.  Only once in my entire career have two students licked a chemical.  The nurse and I discussed the ER, an ambulance, and the IV with the two teen present as we called poison control.  The nurse suggested asking the ER to fish around inserting the IV in the vein in the forehead. Those two teens did not misbehave again.  Yes, I tell this story on the first day of Chemistry class.). Those teens vacuum and mop the basement and stairs.  I added rug shampooing this year.  Two students this year are perilously close to making cleaning the basement a Christmas project.  One was pretending to stay Expo cleaner in his mouth like a breath spray. We may add wiping the rafters.  Look for jobs you want completed and loathe doing yourself, such as sorting a molecular model kit or sharpening a bag of colored pencils with a hand-sharpener.  I find showing student the consequences at the beginning of the year to be effective.  We had stacks of tax materials that needed to be sorted and stacked on shelves.  The first day of classes everyone was shown the project.  Let me tell you, everyone has been much better behaved this year.