Thanks everyone!
I don't know what's a glazier tough. =/

However, I guess it's a place where they create (cut) glasses?

And I also don't think they would trade for something like that... However I can guarantee it wasn't my sister's fault as the unique thing she has done was grab it and put at ther pocket. However it would be my word againts his.

I thought jp's idea very interesting... I'll talk to my sister!