That’s a lie. Fixing other people’s old code is a maddening experience that puts you in a stabby mood. At the very least you’d like to punch the programmer in the face repeatedly while screaming “WHY DID YOU DO THAT LIKE THAT WHAT WERE YOU THINKING ARE YOU A COMPLETE IDIOT OR JUST A TOTAL IDIOT?” and showering them with spit. Veins popping out of your neck and forehead. Face going red. The whole spiel.