I really want to see this happen:

Yang, playing around with her new bionic arm: “wOW this is so freaking cool! I can even twist it around and–”
Yang: *accidentally hits Ironwood across the face*
Ironwood: ….
Yang: *mortified*….
Yang: ….Sir, I am so sorry I didn’t mean to–
Ironwood: No no, it’s okay. Mine did that a few times when it was new, too.
*flashback to Ironwood’s arm slapping Qrow across the face*