Nancy

Snape waved the wand hidden in the sleeve of his robe and cast a Muffliato, so that anyone around them who heard their conversation would only hear a buzzing noise.

Allen lowered the hand that had been gently stroking the feathers on Anka's head and tapped the bag. "How much should I use at once?"

"Only three drops. It will quickly stimulate intestinal peristalsis, make your abdomen rumble, churn your bowels, and accelerate the expulsion of feces." Snape sounded rather serious as he described the effects. "I added an extra handful of dried Bashu fruit. You know what that does."

Seeing his Potions professor solemnly deliver lines that sounded rather ridiculous, Allen nodded inwardly, though in reality he bit down hard on the tip of his tongue to keep himself from laughing. Only then did he ask, "What about the loss of mobility?"

"Just one small cup would be enough to leave He-Who-Must-Not-Be-Named too weak to move and at others' mercy." In that distinctive tone of his, Snape used You-Know-Who as an example, just as he had once explained Veritaserum to Harry.

Allen nodded in satisfaction. "Are they dangerous? I mean... if someone took too much, would it be fatal?"

"If you consider it safe so long as no one dies, then it is safe." Snape's tone grew a little impatient. "I added a great deal of bezoar to ease the toxicity, but I could hardly find anyone to test it on. I made a lot, as you asked. If you're not reassured, you're welcome to try it yourself..."

"Sorry. I have great faith in your talent for Potions." Allen spread his hands in apology, then hung the other man's pouch on the belt of his robe. "It's just that the target is rather old, and I'm a little worried