Coincidentally ....
This chap loses both of his ears in an accident.
The surgeon tells him that there are no human transplant ears available but they have a dog's ear and a pig's ear ready to transplant, so he agrees to the operation.
One month later, he goes back for a check up and the doc asks him how he is getting on with his new ears. "Well doctor" the bloke says, "The dog ear is brilliant - I can hear for miles and no one ever talks behind my back. However with the pigs ear.... I seem to be getting a lot of crackling in it."
Ta - da ........