Light... and water

Steven thinks he has cleansed the den of its random lighting curse. Yesterday morning he managed to turn on all the lights in that room and turn them off again. Wanting to demonstrate his newfound electricity controlling skill, he turned them on again in the evening but, of course, nothing happened. He went off to bed mumbling about lighting and x10 and a few minutes later all the lights magically came on. But this time, I was able to turn them off at the switch. A delay, sure - but it beats running down to the basement to turn them off. Success.
The payback came around 3 AM. A loud CLUNK, followed by a whirring sound from the basement that woke both of us up. It was the sprinklers, which are programmed to come on at 10 AM because they make so much noise, but had obviously been seriously set off course by us having to turn off the electricity every other evening. I've switched them off for good now, we should be ok without them at this point in the year.
Hopefully that's an end to our lighting problems but I'm waiting to get through this evening with no lighting issues before I declare this chapter of "the house is trying to kill us" closed.