One morning, two children were in a doctor's waiting room.

The little girl was softly sobbing.

"Hey...Why are you crying?" asked the little boy.

"I'm here for a blood test, and they're going to cut open my finger!" said the girl, sobbing.

When he heard this, the little boy burst into screams and cried hysterically.

"Why are you crying? It's not so bad" asked the girl.

The crying boy looked up at her and, with tears and boogers rolling down his face, said,

"bu...bu...but I'm here for a urine test!!"