Kaitlin Olson says her family is a big fan of people calling her “bird,” but we already knew that — Dennis laughs at that bit every time.

Longtime sitcom actors know that a sense of humor about yourself is a prerequisite for lasting long in the TV comedy business. Whatever flaw, imperfection or vague resemblance your appearance bears to a non-human animal can and will come up in the writers’ room, and you need to get comfortable hearing superficial slams and shallow put-downs that could very well hit a nerve if you’re insecure. However, stretching back to Jackie Gleason on The Honeymooners, there’s no better way to become an audience favorite than being the plus-sized butt of the joke.

That goes double for women on sitcoms, especially the lone woman on a sitcom, and especially the lone woman on a sitcom where all the characters explicitly hate women — even the woman.