I made an evil, hot-headed, mean spirited,children-hating daredevil, and his childish, excitable, crazy,clumsy and slobby wife. . The first 10 minutes he called her mother a Llama three times, yelled at her, and she was talking to the mirror for a loong time
The cool thing about the traits are that you can't put opposing traits on the same sim. If they are grumpy, they can't be hot- heades, if they hate children, they can't be family oriented, etc..