Senryuu

泥棒を doroboo o
捕えてみれば toraete mireba
我が子なり wagako nari
------------------------------(Senryuu Karai)

My dad told me today about a situation in a school in my hometown. Apparently students, while celebrating the beginning of the summer vacations (two months in advance) vandalized school property and caused damages for several thousand dollars. The administration reacted by distributing sanctions, and parents have taken the school to court.

Catching him
You see the robber
Is your own son.

Well, i guess you should let him get on with his business, then.