Here is a Cultural Literacy worksheet on the idiom “bone to pick.” This is a half-page worksheet with three questions.
It’s a solid explication of the expression, and calls upon students to cite an instance when they had a bone to pick with someone. However, this is yet another document in Microsoft Word, so you may do with it as you wish or need.
If you find typos in this document, I would appreciate a notification. And, as always, if you find this material useful in your practice, I would be grateful to hear what you think of it. I seek your peer review.