She might of been joking !!!
We've all had them! I had a woman burst into tears because she didn't like the colour of two tiles I'd laid the previous day (Welsh slate), they were a bit darker than the rest, I told her I'd change them and half an hour later they were replaced. She was an emotional mess every day for one reason or another, mainly about me not letting her cat escape! The cats name was Princess Delilah I think that tells you all you need to know!
Reply to the thread, titled "Lost For Words!!!!" which is posted in Australia Tiling Forum on Tilers Forums.