on the first night you saw a UFO, ran into the house, and to your dismay, no one else believed you. this made you cry steadily alone in bed for many hours, but in the morning you awoke and went about your day without much trouble.
the next night you stayed inside, read a book, and went to bed early. they were out on the porch, looked up, and saw the UFO. then they were abducted, received anal probes like on that South Park episode, and tucked back in their beds before sunrise. they woke up that morning remembering the whole thing.
I thought aliens were supposed to erase your memory of this kind of shit.