I've just realized something...
Sherlock keeps Irene’s phone at the end of Scandal in Belgravia. It’s not a rational choice: he didn’t have any reason to keep it, because it was empty and literally had no use.
In Dr. Strange, Strange keeps the watch Christine gave him. It wasn’t a rational choice: he didn’t have to keep it, especially after being broken and useless.
Conclusion: they’re both smart and grumpy characters who pretend they don’t have feelings even though both of them kept useless things that once belonged to Irene Adler. As Sherlock once said…












