You need to do something other than play video games all day...

Dear Son,

    I know you'd rather play video games in the dark all day.  However, as a parent I am obligated to make you play outside when the weather is nice. While it was a creative attempt to exert your will on the Universe, threatening me with a Lego Crucifix will not make me go away.

Love, Mom

PS - the hissing was a nice touch.