Q. "Just what I have always wanted: a broken leg!"

Q. The audience knows the house isn't really haunted, but a terrified visitor takes desperate measures to get away.

Q. "Don't you just hate it when you get all A's?"

Q. The audience knows that Romeo and Juliet are falling in love with their mortal enemies, but they do not realize this. 

Q. A heart surgeon has a heart attack.

Q. A homicide detective commits murder.

Q. A vet hates animals.

Q. "Wow! You live in a mansion!  It must be easy to keep both rooms clean."

Q. When the servant invites Romeo and Benvolio to the Capulet party without him realizing that they are Montagues.

Q. A busy man wishes he had time to relax but when stranded on a deserted island, he goes insane from boredom.

Q. "Great! I didn't make the basketball team!"

Q. A personal trainer is overweight.

Q. An earthquake-warning center is destroyed in an earthquake.

Q. On the day that world peace is declared, a giant meteor comes and destroys the world. 

Q. There is a ceremony celebrating the rehabilitation of two injured seals. When the two seals are released back into the wild, they are eaten a minute later by a killer whale.

Q. If you are doing especially well playing a video game, chances are you will die and lose it all just before you reach a save point.

Q. The Titanic was promoted as being 100% unsinkable, but in 1912 the ship sank on its maiden voyage.