The projectiles stop coming, so that's the end of this particular exercise. Jade is frowning, irritated and making sure Professor Rammsteiner knows it, but he doesn't try to reactivate the slingshot.

"Fine." He taps on his own shield, shattering it, then steps towards the table. He picks up the slingshot, holding it carefully.

Time to go look for a deserted classroom he can use. He's not about to practice in the Ravenclaw common room - Ravenclaw is full of too many eccentrics up and working at all hours of the night.

But before that...

"Thank you," he mutters, not looking at Professor Rammsteiner. That's what the Professor - Professor Nebilim, that is - would have wanted him to say, isn't it?