That kind of ability would certainly come as a surprise to the lil guy! Imagine as they grow older and get stronger with it, running around zapping their friends with mini lightning bolts when they’re bored, and sticking stuff to the wall with static cling!
There’s certainly a wealth of possibilities for what borrowers could have in the walls, and not all of them even realize they have it, or are like Walt, and never manifested it (the extreme stress he was under during The Ties That Bind is what broke his block in the end, giving him the chance to save his family).
What would your knack be? Let us know!