I didn't even know such a thing existed until I saw it advertised a few minutes ago - an Electronic Marine Stehoscope. Can anyone hear (no pun intended) make an argument for why one should buy such a toy? Do any of you have one? (the advertisement I saw was for Blue-Point - there may be other brands). Maybe Jon E?

Do you have any other tool toys you keep aboard the boat which others here will wonder "Why do you have THAT aboard your boat?"

Jerry