The context of the following conversation is Austin carried out their threat. They meant business this time.:
Austin says We did it.  We totalled their vehicle..
The friend responds Haha.  Yeah and they thought we were joking!.
Austin responds We had to teach them a lesson somehow!.
The friend responds It was a brilliant plan..
Austin responds Yes. Indeed.  Thanks for the help..
The friend responds No problem.  I had fun!.