When I was in nursing school
, my roommate was assigned a 6 year old "tough guy" who tried very hard to intimidate his nursing student. As we discussed him, my advice was not to worry unless he pulled a knife on her.
The next morning at breakfast as she tried to give him his medication, he grabbed the plastic butter knife, and pointing at her, told her in no uncertain terms he didn't want to take his medication.
Remembering our conversation from the night before, she started laughing. The kid didn't know what to do and ended up taking his medication...