Problem is, we don’t know. Probably harmless, but since many women have had this experience, and it’s 99.9% of the time a guy who’s doing it — how are we to know?
Respectfully (and I mean that) — it’s not much comfort to hear about the probability because we still have to be on our guard. And let’s face it — this guy doesn’t sound very harmless to me. Ticking time bomb.