Then again, now that you've proven yourself against a troll. A little game of Quidditch should be easy work for you. Even if it is against Slytherin.
10 seconds sound clip from the Harry Potter and the Sorcerer's Stone movie soundboard.
You can hear this line at 01:17:42 in the Blu-ray version of the movie.
Quote context
[...]
- Take a bit of toast, mate. Go on.
- Ron's right, Harry. You're gonna need your strength today.
- Blood?
- But, he got himself bitten, that's why he's limping.
- But why would anyone go near that dog?
- The day I was at Gringotts, Hagrid took something out of one of the vaults.
[...]