There Was a Time When The Wrong Pictures Might Result In This Reaction

Yup.  Once upon a time, if a small child showed, by his or her actions, statements, or artwork, that he or she knew about sex, it would raise some eyebrows at school, perhaps leading to an investigation to see if the child was being sexually abused.  Now, it just means that the child has access to the Internet or the parents haven't properly set up their cable TV box.

Now, we have the insane situation where a child draws a picture of her father engaged in a lawful act, and the police go crazy:

Police arrested a Kitchener, Ont., father outside his daughter's school because the four-year-old drew a picture of him holding a gun.

Jessie Sansone told the Record newspaper that he was in shock when he was arrested Wednesday and taken to a police station for questioning over the drawing. He was also strip-searched.

"This is completely insane. My daughter drew a gun on a piece of paper at school," he said.
Officials told the newspaper the move was necessary to ensure there were no guns accessible by children in the family's home. 

Well, that's a serious matter, all right.  It's clear that there is no need to see if Kitchener police have access to a working brain.