Raging over things while being pregnant. Particularly on Facebook or other social areas where more people than one's your significant other (who signed up for that shit) can see.
Wife - "Those fuckers sent a crib with a defect and only gave me a 25% credit?!?! I should complain to my husband so he can straighten this shit out. No, fuck that, I'm going to just post how angry I am on Facebook so all my friends can be just as miserable as me!"
*Posts it on Facebook, tags husband*
Everyone at work the next day, to husband - "Dude, you're wife is prego-raging hardcore."
Husband - "FML"