Wait a few minutes to see if the owner exchanges, then the problem will resolve itself. Your predecessor will usually want to use the dryer, which they must unlock in the same time slot as you. However, if you run out of time, you can put the laundry to one side. Please make sure to put them in a clean place (e.g. a laundry basket). Tip: Place your laundry basket on top of the machine you are using. This way, your replacement can put your laundry to one side if you forget the time.