One of the highlights of every summer in my house is dealing with ant infestations. We have a routine down now but the first summer we had them was properly grim. My housemate and I had accidentally broken a hole into a cavity wall in the winter when moving appliances and we thought nothing of it.
Cut to July and the kitchen is swarming with ants. No idea where they were coming from until one day I had a brainwave and pulled out the fridge. Thousands of ants behind the fridge and kitchen units. Pushed the fridge back in, went to our local DIY store and spent big on ant spray. Got masks and disposable overalls, threw on some Black Flag and got to work along with my housemate fucking the bastards up. A satisfying but horrible job.
Had a bit of trouble with them in summer 2017 but we’re old hands at it now. The hole still isn’t sealed but the landlord is doing work next month and he’ll be fixing it, meaning that the problem will be over!