Shrike, my memory isn't perfect, but I tend to forget where I put my keys or ink pen, or in not quoting people verbatim while gossiping, but not when it's something odd that happens. That tends to make my memory sharper, possibly, because of the kind of work that I do. If it's something unusual I'll immediately pay more attention to it, or notice it for that matter, out of habit.
Here, there is a mechanism for it that is noted in the research that describes what I'm talking about:
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2676782/
This belief in the durability of emotional memories – a term that is often used as short-hand to denote memories for events that elicited an emotional response at the time of their occurrence – is closely related to the concept of a “flashbulb memory,” a phrase coined by Brown and Kulik (1977). These authors argued that when a highly surprising event occurs, a special memory mechanism takes over, causing the moment to be recorded with picture-perfect accuracy.
And from the very next paragraph of that article:
"Despite their subjective vividness, however, even emotional memories are subject to distortion. Compelling evidence for inaccuracies within emotional memories has come from studies that measure the consistency with which people report details such as where they were, or what they were doing, when they learned that an event occurred. If these details were retained accurately, then people should report exactly the same details at each retelling. In reality, however, people’s accounts of these details change over time:"
Memories change over time. This is what everyone hear has been repeating. Attempting to explain apparently inexplicable events from the past is almost futile because you can never be sure you have remembered all the details accurately. You may learn of a number of plausible explanations, but you will probably never be sure. You will be left with doubts.
Everyone has things like this happen to them, as witnessed by all the stories above. The best approach is to attempt to understand them at the time they occur. Stop, look carefully. Attempt to recreate the conditions immediately to see if it is repeatable. Begin with the assumption that objects do not disappear, and they do not move unless acted on. When doors close by themselves, spend some time playing with them, trying to make it happen again. If a tissue slips back, be gentle, pull it out a little and see if it happens again. Be curious and investigate. Don't just jump to the conclusion that magic happened and walk away, because once you do you will have only your memory to go on.
Even given immediate careful investigation a valid explanation may escape you (see stories related above). Skeptics consider this a failure of their understanding and investigation, not proof of supernatural causes.