This song is about an autistic child trying their best to follow social rules and be "normal" - but realizing that all the rules around them are arbitrary because they're never consistent. They have a heavy focus on what is "legal" because legality is less grey than the arbitrary social rules people set. The boundary-lines blurring rings to me how adults say there are hard rules in socialization but in truth it's all grey and confusing. The laughing is forced like it's what they're told they're supposed to do. "Dangerous thinking" aka questioning things makes them a "bad kid". Autistic kids are always asking many questions and calling into question every rule that doesn't make sense because why follow rules that don't make sense? As a side-note, the character grabs their skirt like they're going to curtsey at but is also sticking their tongue out, which is almost mocking the social rules and politeness they've been forced to follow.They realize that it's futile to be praised because they're never going to fully be "normal" and they just want to appreciate the world and laugh.(00:02:49 - 00:03:36) ピノキオピー - よいこのくすり feat. 初音ミク / Medicine for Good Kids