I only experienced it once but it was just the caterer and my sim... I only remember that because that was the one where the caterer set the house on fire... XD
Well, one of my sims died because I forgot to turn autonomy back on and they were starving when I started the game, 2 of my sims passed out and almost all my sims almost died because of poor cooking. Fun...
None of my sims have got fired yet, and I still haven't got round to actually maxing out all of a sims skills yet. Also, never EVER got the baking skill before. My sims tend to just cook.