Spontaneity

A close relative has accused me of lacking spontaneity. Specifically, "I doubt he ever did a spontaneous thing in his entire life."

I've been mulling over this attack and I can think of at least three spontaneous actions that I have performed.  A)  Frequently, in the middle of the afternoon, without forethought or planning, I take a nap.  B) And closely related, but certainly different, sometimes, waking up in the morning, I decide, spontaneously, to lie in bed for another hour or so. And C), just yesterday, when I trundled over to the Public Library to borrow the book on ancient dead languages that I had reserved, I spontaneously pulled a second book (on Neanderthals) off the shelf. 

Now if those aren't plain and distinct instances of spontaneity I don't know what.

Moreover, I am making a long list of spontaneous actions to take in the near future.