The context of the following conversation is Remy invited friends over and made a small party without  his parents permission last weeknend. Remy parents punished him for a week.:
Remy says My parents grounded me for a week..
The friend responds What did you do to get on their nerves?.
Remy responds I had small party when they were gone..
The friend responds Was anything damaged by your friends..
Remy responds No, but my parents lectured me about disclosure and trust..
The friend responds How did they know you held a party?.