I have been observing my own dream 'weaknesses' as I call it, it's actually the function in dreams that are unstable. I have a few....Sizing; like fitting a lightbulb to it's socket that is either slightly too big(loose) so I can keep screwing it in at no end or the screw base does not fit in although it looks like it will fit, State change; I left some laundry out and went to bring it in, I turn my back it's out there again, Daylight; it can be nightime and then daytime the next moment. I have been lucid before because of it so I think this is a great idea to use as a trigger for lucidity but each person is different and may have their own dream 'weaknesses' so it's worth to find them out..... It'll be interesting if someone could explain Y it happens.

IMJ