Paper or Plastic?

I went to Walmart one day and the cashier asked me how I was doing. I replied, "I'm having the worst day of my life. I'll probably go home and kill myself."  She replied, "Thats nice. Would you like paper or plastic." I said, "Plastic, so I can wrap it around my head when I get home and suffocate myself."  She said, "You got it, plastic it is."