Usually I RC randomly when it comes across my mind or when it something is really weird. For example, i swear i saw some kid run around a house with a checkered jacket and go into his backyard, then he ran around the house again with the same jacket, but the backyard has no exit on the inside so there is no way he could have done a full loop unless he has a brother with the same jacket and same age =/ WEIRD... but i wasn't dreaming..