http://news.yahoo.com/blogs/sideshow/teacher-fired-assigning-violent-math-problems-third-graders-201910368.html
I wrote one of my own....
A pitchfork has 5 prongs and 3 teachers assigned 2 days of homework for the weekend and 3 more only assigned one day of homework for Saturday. Assuming you make good contact with each thrust of the pitchfork, how many thrusts will it take to poke 15 holes into each teacher that assigned 2 days homework over the weekend?