If all those shows on the Discovery Channel are right, a midget is someone with a pituitary problem who is basically just really small. It can now be corrected in childhood with growth hormones and actual midgets today are rare.
Dwarfism is a medical condition that cannot be corrected and there are many types of dwarfism.
What is the differnce between a dwarf pickpocket and Rosie Ruiz?
Well, one is a cunning runt......