[He's inherently more aggressive, and it persists even though he doesn't mean it maliciously.His purrs sound like bubbly growls, which shows he could roar very loudly if he wanted. Touya steps up to him with a gentle tug to his mane as a reminder.]

...

[He's chalking it up to personality quirk. Not all Luxray behave like this. Gears in his mind are churning.]