For the last couple of months we have been having washing machine problems. If you held your mouth the correct way then you could occasionally get it to do a full cycle without having to open and close the lid a hundred times or turn it off and restart it. Usually you just had to hope that it had completed enough of the cycle and that the clothes were vaguely clean. We presumed it was going to be a costly exercise to get it fixed as it seemed like the computer wasn't functioning properly, but we were pleasantly surprised when the repairman finally came to fix it today and discovered that somehow a 500 yen coin had made its way into the outlet hose and was causing all the problems. He has no idea how it could have got there, but judging by the colouring I think it has been there for some time... which blows my theory that the frog took it in with him thinking he had to pay for his wish-washy ride!
Although we still had to pay the call-out fee, after we deducted the 500 yen we found it turned out to be a pretty cheap exercise.