Headscratchers / M*A*S*H S1 E4: Chief Surgeon Who?

• Why does Hawkeye refer to General Barker as "Dad"?
  • Given Hawkeye's disdain for the military in general, and his tendency to not fully respect the ranks of higher-ups (with some exceptions, such as Col. Potter), not to mention the fact that Barker's there because Frank tattled on Hawkeye, it's probably meant to be a derogatory nickname.