Sorting Hat: You already show commendable loyalty and you certainly strive toward academic achievements without needing any urging. And while you have plenty of courage... you might benefit from learning that being straightfoward in some dealings isn't all bad.
While on holiday in Egypt, Harry and two others borrow a flying carpet and take it for a flight. Then they crash it into a swimming pool.
Remus annoys Harry when they first meet. Afterwards, Albus pays Snape and co. a visit.
Albus: What do you wish to do about Remus?
Tom immediately thought of a nice wolf-skin rug. Lucius mused over several deserted islands Remus could be left on, wandless of course. Petunia thought darkly about revisiting several pranks that had been done to herself and Vernon. Severus wondered if he could obliviate Harry from Remus's mind.
Sirius Black, Daedalus Diggle and Mundungas Fletcher go on holiday in the Caribbean... and run afoul of the law. Repeatedly. Among other things, Sirius goes water-skiing without a boat and the three of them go treasure hunting while drunk. It goes as well as you might expect.