Graduation after-parties always seem to be a big deal, especially if all your friends are going away to different colleges. After all, it could be the last night to really celebrate all together. But imagine having to pay up an eye-watering $80,000 in Ontario graduation party damage because your night got out of hand.\nThat's the case for some high-schoolers after seven teenagers were charged in south London, Ontario, according to a London Police press release.\nAccording to CBC, back in June, London police arrived at a house after responding to many 911 calls about a huge house party found around Grand Avenue and Ridout Street, just down the road from London South Collegiate Institute.\nThat's when they came across about 50 teens.\nView this post on Instagram Remember to celebrate responsibly tonight! Don’t welcome 2019 with a visit to our house. Plan ahead and stay safe. A post shared by London Police Service (@lpsmediaoffice) on Dec 31, 2018 at 2:03pm PST\nThere was reportedly a significant amount of damage done to both the interior and exterior parts of the house, as well as kitchen, furniture, and deck damage.\nLondon Police say that, two months later, this has all resulted in about $80,000 worth of damages and criminal charges for seven of the party attendees.\nTo make the story even crazier, the owner of the property in question, who had rented out the place, thought it was being occupied by a young couple from out of town. Presumably, they had anticipated a quiet and peaceful stay at their home.\nPolice let them know that certainly wasn't the case.\nAfter an investigation by London Police Secondary School Resource officers, seven people were charged with one count of mischief over $5,000.\nAn 18-year-old woman, four 19-year-old men, and two male teens under the age of 18 were charged.\nView this post on Instagram Emergency crews just left an address on Wharncliffe Rd N after a male fell from the roof of a residence. Male transported to hospital by EMS - unknown injuries. #ldnont #dontinviteus2urparty A post shared by London Police Service (@lpsmediaoffice) on Mar 17, 2019 at 1:23pm PDT\nIn terms of paying the damages, typically, homeowners renting out their humble abodes must have insurance, so hopefully, they shouldn't find themselves on the hook for any of the student-inflicted damage.\nAs of now, London Police said more charges could be laid as the investigation continues.\nLet that be a lesson for anyone throwing house parties: Keep things in check, or you could find yourself with a mischief charge and on the hook for your share of 80 large ones.\nNarcity has contacted London Police for further comment.\nThere are stories everywhere. If you spot a newsworthy event in your city, send us a message, photo, or video @NarcityCanada on Twitter and Instagram.