Every time Khadgar makes a pun, Illidan “accidentally” hits him with a wing. Maiev knows he’s doing on it purpose and normally would use it as a reason to instigate a fight with Illidan, but if she hears one more fire pun she’s going to hit Khadgar herself. Khadgar knows it’s not accidental, but it keeps those two from bickering and it’s helping him work on his puns.