Why aren't fire hydrants filled with actual fire?

[Gangstalker #32194]

Is it possible for a fire hydrant to become pregnant, or is it only able to impregnate others?

 

[Aunt Carol]

I heard that if you cut off the outlet nozzle of a hydrant, two more grow in its place.

 

[someonenew]

Fire hydrants are filled with water so we can play with fire.

 

[DankSmoker]

Only us white folk like prancing about in fire.

 

[Dysnomia]

They are filled with fire. The CIA just wants you to think it's water.