Samples
Two children, Little Johnny and Alex, were sitting outside a clinic. Alex was crying very loudly.
Little Johnny: “Why are you crying?”
Alex: “I came here for a blood test.”
Little Johnny: “So? Are you afraid?”
Alex: “No. For the blood test, they cut my finger.”
After hearing this, Johnny started weeping, making Alex feel surprised as well as curious.
Alex: “Why are you crying now?”
Little Johnny: “I came for a urine test!”