The company and the union are engaged in a 'war of nerves', with each side threatening the other.
Something she said to him must have 'hit/struck/touched a nerve'. I've never seen him so angry.
“After making the mess, he didn't even offer to help clean it up.” “What (a) 'nerve'!”
(..) is taking him away from me. What are you talking about? Where's that bonding strip? And another thing, stop with this spaceman thing! It's getting on my nerves! Are you saying you wanna lodge a complaint with Star Command? Okay! Well, so you wanna do it the hard way, huh? (..)1995 Toy Story