do you have a pair of high heels?
One thing i thought of doing to someone but that has always felt a bit too mean is to get them to stick crown corks on the heel/instep of such things so that they have to walk on the very ball of their foot in order to avoid them digging in.
...and then make them clean the house or something.
I wonder how long it will be before they can't keep balacnign on their toes any longer?
and how much longer after that before they can't take the pain their feet?
...do you think you would be able to clean your house like that?