Carmine Galante, Anthony Casso, Vic Amuso, Nick Scarfo, Sammy Gravano, Joey Merlino, Jimmy Ida, Venero Mangano and Carmine Persico are/were all smaller than leprechauns too and they handle themselves pretty well in prison.
Well Casso & Amuso got the ever loving sh*t kicked out of them when they acted out but the rest have fared okay.
Well yes sure, but they would do a lot worse in prison if instead of mafioso they would be there for butchering a pregnant woman.