Yes. He shouts "Ridikkulus!"

From Create Your Own Story

Now you're dressed in Neville's grandmother's clothing. That little hobknocker! You've got to get him back. But how?

• Transform into a wand and use the killing curse on the bastard
• Don't kill him. You're not that merciful. Oh no. You're going to transform into a wand and use Crucio on him! Ha ha ha ha!
• Stab him in the penis
• Take over 9000 points from Gryffindor