Two children John and Peter , were sitting outside a clinic.
John happened to be crying very loudly.
“Why are you crying?“ Peter asked.
“I came here for a blood test,“ sobbed John.
“So? Are you afraid?“
“No. For the blood test, they cut my finger.
As Peter heard this, he immediately began crying
Amazed, John stopped his tears and asked Peter,
“Why are you crying now?“
To which Peter replied, “I came for a urine test!“