exactly....
I didn't commit any crime while I was eating dinner, but if you haul me before a grand jury 4 separate times and ask me what I had for dinner, how did I fix it, who did I talk to, what time I ate it, what recipe did I use,..etc. I would probably give different answers depending on my state of mind at the time.
Does that make me a perjurer?
If I've spent millions chasing you for one thing, but can't prove that thing, then I'll nail you on lying about your recipe.