They do, it's unfortunate. We had an English springer spaniel growing up, and went to get him as a puppy. They had already docked his tail and didn't want to give him to us before doing his ears, and we were just like "oh no no, let us pay for that", they agreed, and then we never spoke to them again and his ears remained lovely and floppy.
He did have to wag his entire butt though because of the tail, unfortunately.
Unfortunately he's playing with all of our pets on the rainbow bridge now, but my God I felt awful because it seemed like nothing would work to kill the infection (vet meds) and he just had itchy ears...
I can't wait to adopt/rescue my next stubborn ass Plott