This kid is being suspended for sexual harassment. Not for being annoying, disruptive, or not respecting his teacher. Sure, the story might have played out exactly like you said, but tying the words 'sexual harassment' to the punishment is going too far. He's 6 years old. That might be considered 'harassment' in a 6-year-old's eyes, but the teachers and adults responsible for his suspension should have known that there was nothing sexual behind it. He's singing a song played on the radio constantly. He memorized the words, that doesn't mean he understands what they mean. Even if he's a consistently disruptive student, bringing sex into the picture is only going to cause problems later on.