RE: Short life spans of her earlier husbands....
If one of them crosses her, she goes to the garage and gets out a special shiny golden shovel for some groundbreaking of another final resting place. Paid for my huge insurance policies.
Oh, sorry, that was an Alfred Hitchcock TV episode. Sorry, Diane.
LOL! I thought you were going to say it was the episode titled: "Lamb to the Slaughter," where the wife beat her abusive husband to death with a frozen leg of lamb, and reported him missing. She then cooks up the leg of lamb, and serves it to the police officers looking into his disappearance.