In Rav Elyashiv’s psak authorizing reporting suspected molesters to the authorities he says it should be done, if “yesh raglayim lidavar” (literally, if the thing has legs). Agudah claims that means, ask a rabbi which is their method of Intercept and Deflect. However, I have it on good authority that all you need is suspicious behavior apparent to a lay person to meet this standard.
My pop quiz question is where is this term first used in rabbinic literature and what does this suggest about the correct interpretation of Rav Elyashiv’s ruling. We can of course assume, that Rav Elyashiv’s choice of a rarely used term was quite deliberate.
So, smart folk out there, go at it.
Prize for best answer: bragging rights and incorporation into this post or a future post with full credit.
Penalty for worst answer: Display on this blog with an informed critique.
Judge: A serious talmid chacham known to me.