I lost a sim like this. On his wedding day no less. I was doing the standard 'get to know you" things like telling jokes and stories, watching the clouds, flirting, etc they'd just agreed to elope and moved home. I entered the lot, my sim walked in the house to ...enjoy wedded bliss in the form of nooboo production, and the new husband, Johny Zest, checked his pulse, and keeled over dead. That's when I got the message that Mr Zest-Tremain had just passed away due to hysteria. I guess my sim was a funnier lady than she ever gave herself credit for :(