I guess the better question is what kind of soap are YOU using? I have never had a bar of soap, regardless brand, that once you got down to that last sliver in the middle would lather up like the rest of bar did.

This is not a serious question, btw.

__________________
“The only thing necessary for the triumph of evil is for good men to do nothing” - Edmund Burke

So in the Libyan fable it is told
That once an eagle, stricken with a dart,
Said, when he saw the fashion of the shaft,
“With our own feathers, not by others’ hands,
Are we now smitten.” Æschylus