$5
After some time Lucy arrive with a present, too: Hallufix.
They talk about how bad Christa feet feel today. Even in the Birkenstocks they remained achy.
She tells her how bad it is for her feet to wear high heels every day and that her bunions will get worse this way.
Afterwards, she tries the Hallufix.
Next morning (she has gone to bed with the Hallufix) she calls you telephonically and tells you how her feet feel now and that it is a lucky day: She must not work today and can finally wear her Birkenstocks all the day...