I'm sorry let me just-
I think we really hate it when we're listening to heart sounds or breath sounds - stethoscope pressed against skin - and the person decides it's a good time to shout or say something really loudly.
The damn tube transmits sound. Not just heart thumps or breath wheezes but ALL SOUND. And if it lets me hear an end-inspiratory crackle, or a tiny little whirring murmur, can you just imagine what a full on roar-.
Enough of this and I will really turn deaf.