Bad hair day

Woman walks into the shop, and approaches me with a "hello, i know you are busy"

I instantly suspected a sale pitch, but no. She then asked.

"Do you have a book for thickening up hair ?"

I looked suitably blank (not having a clue what she was talking about)

"My sister has a bald patch, and I want a book to thicken her hair... I'd pay anything for it"

"Ah, do you mean a book about hairdressing madam ?"

"Not really, I don't want to do hairdressing, i just want to know how to thicken my sisters hair"

I suggested that it might be easier to just ask a hairdresser for advice, which she thought was a jolly good idea, and set off to obtain immediately.