Today I was looking at one of the KG1 activity books and I noticed the word "frottage" - in the directions below. The instructions are to trace or rub over a coin with a pencil - and creat the image that is on the coin. We've all done this at some point in our lives.
I'd never seen this word before, so I looked it up and to my surprise - it has a art definition and a sexual definition.
Probably would not be my choice to put in an activity book for children, but here it is. Always something.