Definitely more similar than different. Other similarities....
Obsessed with the weather
Obsessed with what day of the week it is and the corresponding activities for that day
They are never to blame
Obsessed with taking or not taking their pills, vitamins, or any type of medicine
Obsessed with aches and pains
Obsessed with death and dying
Obsessed with bodily functions and fluids
Speak their mind and are brutally honest
Do not care who they offend
Really enjoy ice cream
Hate waiting for anything
Their TV shows are the best
Never let one finish a senten--because they interrupt you all the time.