Will and Yelena
Yes, Will was a professor on criminal behavior, who taught classes rather successfully until Jack Crawford came into his life, but Will was not a natural teacher type. He taught classes because he could never pass a psyche test to get into the FBI and he had removed himself from law enforcement for never being able to shoot his gun. How times had changed in that manner. How he had changed when given the right push. He did not mind showing people how to fish because it was a fairly simple concept and involved a lot of silence.
He could teach her about lures and making them and when to use them, easily, and if he was honest with himself, he would eventually if she wanted to learn it.
"My uncle did. It's a fairly inexpensive pass time." Will did not care enough about his childhood to consider it a touchy subject.