I bet that title got your attention!! :)
A teacher I work with told me a funny story. (Names have been changed!)
She walked into a room where two of her students were looking at a book. One said, "Man! That is the biggest testicle I have ever seen!"
She figured she ought to find out what they were looking at.
It was a picture of an octopus.
She said, "Jason, I think you mean tentacle."