Strange Occurences in My Friend's House

I have a friend I will keep anonymous who has now had four bizarre things happen to her over the past year.  These are things that many people would dismiss as absent-mindedness, but she is one of the most together, alert, and deliberate people I know.  I told her she needed to keep a record of these experiences, so I'm doing it for her:

First incident: Last year, she was leaving the house with her daughter.  She grabbed her very bulky keys and stuffed them into her coat pocket.  She remembers this specifically.  She got the car and they keys weren't there.  She went back to the house, opened the front door (I can't remember if she hadn't locked it or what) and the keys were hanging on the hook next to the front door.

Second incident: She woke up one morning to a bizarre noise.  She discovered it was coming from her deceased grandmother's electronic keyboard which had been turned to full volume.  The cover -- which takes some effort to get on -- was still on it.  My friend not only meticulously turns the keyboard off when she is done with it, but she always turns each volume adjuster all the way down.  Her little girl is too small to have messed with the keyboard and replaced the cover.  My friend shut the keyboard off, turned it back on, and could never get it to duplicate that odd noise again.

Third incident:  the evening before last, my friend was washing her dishes and came to the last thing -- a bread pan.  There was some cheese stuck in the bottom corner of the pan and she considered just soaking it all night.  Then she decided against it since she had a brillow pad or something and she scrubbed it, rinsed it, and put in the dish rack.  The next morning when she got up, the pan was soaking in the sink, cheese still stuck to the bottom, as if she had made a different decision.

Fourth incident: the same evening (evening before last) she specifically remembers putting her phone on the charger because her mother-in-law had tried to call right before she did so.  She ignored the call, joked with  her husband, then plugged the phone in.   The next morning the phone was in its case next to the charger station. Her husband witnessed  her put it on the charger and can't figure it out.  He also is pretty sure he saw her wash and put away the bread pan.

Inconsequential weirdness, but weird nonetheless.