A shriek.
"Colin! You gave me a heart attack!"
"Sorry."
"Just don't sneak up on people."
"I'm sorry."
"No, it's alright. No, don't get upset- Colin? What are you doing?"
"I'm sorry, Hermione. They've got Dennis."
"Colin, wait! Harry can-"
A struggle.
"Stupefy!"
A thump.
"Oh, Colin. What am I going to do with you?"