Break My Fingers, Darling

Its meaning is self explanatory. It can be used in 3 situations:
Either
1 - Never
2 - Always
3 - When you want your darling to break your fingers

1950's Man - "Break My Fingers, Darling!"
1950's Housewife - Okay
1950's Man's fingers get broken

Can't Them Walk On A Steely Cricket?

Can't the person/people in question act normal/appropriate?

Man 01 (to Man 02): Hey, Can't Them Walk On A Steely Cricket?
Man 02: That's what I'm saying, I mean it's absolutely reprehensible behaviour on their part!