He might replace Sasuke's kunai with candy - shaped ones. It would be really funny when Sasuke tries to use them in a fight or training. Another prank could be that Naruto hides Sasuke's training gear and replaces it with a bunch of candies.
One possible answer could be that they might be talking about how they and their wives have different sleeping habits. For example, one friend could say that his wife is an early sleeper and wakes up early, while the other friend's wife is a night owl and sleeps in late. This could lead to interesting conversations about how they adjust their own schedules to accommodate their wives' sleeping patterns.
Well, I once had a friend who fell asleep standing up at a concert. He was so tired from all the excitement before. When the music stopped, he just slumped forward a bit and started snoring softly. It was hilarious.
Once there was a man whose wife was a very deep sleeper. One day, his friends came over for a surprise visit. They were all chatting and laughing in the living room, but his wife didn't wake up at all. The man was a bit embarrassed but also found it quite funny. He told his friends how she could sleep through almost anything. His friends were amazed and they all shared stories about their own experiences with heavy sleepers in their families.
Harry could use the Marauder's Map to always know where Voldemort is and then set up little magical traps in his path. For example, a puddle that turns into a sticky mess when Voldemort steps in it.
One possibility is that the friends will be very quiet so as not to wake her. For example, they might sit in another room and have a whispered conversation. Another thing could be that they accidentally make a noise and wake her up, which might startle her at first but then she could be friendly and join them. Or they might just leave a note and come back later when she's awake.
This is a very serious ethical issue. Firstly, it betrays the trust of your friend. A friendship is based on mutual respect and loyalty, and such behavior completely violates this foundation. Secondly, it can cause great harm to the family structure and relationships. It may lead to the breakdown of the family, and cause emotional distress to many people involved, such as the friend, his or her father, and other relatives.
One story could be that a friend's mom was so tired from a long day of work and taking care of the family. She fell asleep on the couch while waiting for her son's friend to be picked up. When the friend's parents arrived, they found her sleeping peacefully and just quietly left, not wanting to wake her.
Yes, it can be okay if the stories are positive and respectful. For example, sharing how the wife sleeps in a cute position or has a unique sleeping habit can be a fun and innocent way to talk about her.