Blondes change a lightbulb

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.