A farmer and his three daughters

A farmer has three daughters and one night they are all going on dates.

At 6:00 there was a knock on the door and the farmer opens the door. The boy outside says:

Hi, my name is Freddy,
I here to see Betty,
We're going out for Spaghetti.
Is she ready?

And the farmer says yes, and they leave.

At 7:00, there is another knock at the door. The farmer opens the door. The boy outside says:

Hi my names Joe.
I'm here to see Flo,
We're going to a show,
Is she ready to go?

The farmer says yes, and the leave.

At 8:00, there is a knock at the door. The farmer opens the door. The boy outside says:

Hi my names Chuck...
And the farmer shoots him.