Changing a Light Bulb

Three blondes are attempting to change a light bulb. One of them decides to call 911:

- Blonde: We need help. We're three blondes changing a light bulb.

- Operator: Hmmmmm. You put in a fresh bulb?

- Blonde: Yes.

- Operator: The power in the house in on?

- Blonde: Of course.

- Operator: And the switch is on?

- Blonde: Yes, yes.

- Operator: And the bulb still won't light up?

- Blonde: No, it's working fine.

- Operator: Then what's the problem?

- Blonde: We got dizzy spinning the ladder around, and we all fell and hurt ourselves.