rape!

Touching a boy's anus for the purpose of sexual gratification of the toucher or touched qualifies as sexual assault. Sources say that the ol' Mexico courts define the anus as the entyre area between the cheeks, meaning if any part of the dart tapped the boy's anus it has, legally speaking, been inserted fully into his anus. To be fair, you didn't come right out and say if your suggestion had the naughty intentions OSP perceived. That would be a question for the courts to determine, depending on what a suspect says and what the investigators can find in his phone. "Straight men," as OSP called them, would have nothing to fear along with any person of any sexual orientation who shoots a boy in the anus without seeking to experience or cause sexual gratification.