"What just happened?" he asked, confused.
She grinned back and said, "Mister Malfoy had a very sudden urge to use the toilet. I believe he'll be occupied for a while."
When Ron still appeared confused the other 'Puff said, "Lilith doesn't like people who use the 'M' word around her. She has a knee-jerk reaction to hex them."
Lilith said, "Megan tends to exaggerate a little. I only save the hexes for people like Malfoy. Him, I hit with a bowel loosening charm. He'll be in the toilet for a couple of hours."
Finally understanding what happened, Ron grinned back and said, "That's wicked!"
Megan said, "I don't know why your so-called golden trio puts up with him so much. We don't."
Lilith said, "Learn the bowel loosening charm, learn to cast it surreptitiously and silently and you shouldn't have anywhere near as much trouble with him in future."
Ron thought about that for a moment before he leaned forward, adopted a begging expression and pleaded, "Teach me?"