On a good day Billy did not enjoy being taunted. Luckily his career path did not usually involved him being taunted, because most people did not enjoy the feeling of not knowing whether or not their temper would cause their healer to slack on their treatment or not, but between his younger brother and sister Billy had been taunted enough to know how he reacted to it, and this was - objectively worse.
He exhaled through his nose, his lips in a deep-set frown, and for a moment he hesitated. He pushed the wand a little harder, considering what spells would do enough damage but not visibly so by the time they left—but suddenly he let up on the pressure, and in one motion he pulled his hand back, threw his wand off into the space behind him, and swung a now-closed fist right into Greengrass' temple.
He exhaled through his nose, his lips in a deep-set frown, and for a moment he hesitated. He pushed the wand a little harder, considering what spells would do enough damage but not visibly so by the time they left—but suddenly he let up on the pressure, and in one motion he pulled his hand back, threw his wand off into the space behind him, and swung a now-closed fist right into Greengrass' temple.
