[LAD] twice as loud

[Tim E. Real]

Hey, you know that little triangular flap of skin that almost 
 covers the ear, just above the earlobe?

Whaddya think if humans are (were?) to evolve that
 little flap so it can be completely and tightly pressed
 against the ear (like you can do now with your finger)
 thus acting as an 'eyelid' for your ear in case things get 
 too loud ? 

I mean what the heck is it doing there now, eh?

Tim.