Corny Jokes: Two Children Were Sitting Outside A

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.
For the blood test, they cut my finger.
At this, the second one started crying profusely.
The first one was astonished.
1st Child: Why are you crying now?
2nd Child: I came for a urine test !