Related:

• Q: What do you get when you cross a Jehovah's Witness and an atheist?
  A: Someone who knocks on your door for no reason whatsoever....
• Opportunity knocks but temptation rings the bell.
• Goodman: Now, who knows how the Skinners could have resolved this problem?
  [everyone puts their hands up] Without resorting to violence....
• New York-- to that tall skyline I come Flyin' in from London to your door New York-- lookin' down on Central Park Where they say you should not wander after dark.
  New York. -- Simon and Garfunkle...
• Everyone: Surprise! Baby shower. Marge: Baby shower?
  You _know_ I haven't told Homer yet, and he'll be home any minute....
• The postman always rings twice.
• Homer: Honey, I'm home! Marge: Hello, dear. How was work at the plant?
  Homer: It's not a plant, Marge, it's a tree, and I've nearly chewed through it....
• Homer: Bart, you're coming home. Bart: I want to stay here with Mr.
  Burns. Burns: I suggest you leave immediately. Home...
• People respond to people who respond.