Shampoo

At first glance, Shampoo might seem like a bimbo, due to her simplified mode of speech, most notably rapidly switching between ignoring and using personal pronouns, but she also had a limited amount of time to learn the Japanese language, after pursuing Ranma to his home country. This tendency may be exaggerated in western translations, although her vocabulary is shown to improve late in the series, and she was presented as speaking fluent Chinese during a rooftop talk with Mousse, when attempting to persuade him to stop using cowardly magic 'apology-glasses'. She has repeatedly shown a devious, strategic, quite intelligent mindset, and isn't above scheming, play-acting, misdirection or completely ruthless behavior to advance her position towards the object of her affection. That said, she doesn't mind having fun by making severe trouble for him in the meantime. This includes sadistically extensively tormenting Ranma during a forced date by tricking him that she possessed a cure for his curse. She also casually set up the attack from Pink & Link by writing about Ranma in her village newspaper, despite initially stating that she was aware that they'd attack, and was wholly unconcerned/unrepentant about intentionally putting him through severe troubles, since it gave her an opportunity to pretend to have been 'captured', so he'd come and 'romantically rescue' her.

She has stated variations on 'obstacle is for killing' as a personal philosophy of expediency, and has enthusiastically attempted to hold true to this towards Akane, Ukyo, Miss Hinako, Nabiki, and presumably anyone else she'd suspect of getting too close to her declared airen. However, even before the 'engagement', during the initial hunt, she was willing to casually kill Akane simply for suspecting that she might hide Ranma, so it seems more generally applicable. That said, shortly following this, after Akane prevented Shampoo from serving her pet pig as dinner, and the latter responded by choosing to apply the kiss of death. During the subsequent fight, Shampoo simply opted to erase Akane’s memories of Ranma. Once these returned Shampoo made another attempt to kill her rival, so she does not strictly limit herself to fatal methods if alternative means can serve her better.

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