John: A woman (such as Lois) tends to act rashly when angered and it is best not to provoke her, for one's own safety.

Lois isn't the type to demand a ring, she has no hopes of ever receiving... because no proposal has been given or accepted.
CLARK: Wait. Does that mean if I offer her one, she'd accept me?
CAT:
Kate B: I'm glad you enjoyed it. Oh, dear, have I messed up? Isn't the Femur the thigh bone, the one directly above the knee? Or did I get that wrong? If she had aimed with the part of her leg directly above her patella...
Mrs. Luthor: 
She's been hyjacking my stories recently.
Thank you. I feared it sounded more like Jimmy.