"I need a day off to attend my twin sister's funeral."
"A whole day? How well did you know her?"
"She.. was.. my... twin."
"But not identical!"
"How does that matter?"
"Well, she didn't even look like you."
"And yet you want a whole day off for a service that takes fifteen minutes."
"Gaa! It would be impossible to be more insensitive!"
"I'll compromise. My pet gerbil is on his last legs. I'll give you the day off if you toss him in the casket so I don't have to bury him myself."
"When do you think it will die?"
"Depends. How much does your sister weigh?"