Two children were sitting outside a clinic. One of them was crying very loudly.
2nd Child: Why are you crying?
1st Child: I came here for a blood test.
2nd Child: So? Are you afraid?
1st Child: No. Not that. For the blood test, they cut my finger.
At this, the second one started crying. The first one was astonished.
1st Child: Why are you crying now?
2nd Child: I have come for my urine test!