Some more cool facts !
-Kids can shock people if they walk on a rug
-Flushing the toilet while someone is in the shower will get the sim yelled at
-Teens destroying a child siblings lemonade stand will get yelled at by their parents
-A mean child can tease a toddler with a toy
-You can feed a dog regular sim food if you leave a plate on the ground
-Cats can be trained to use the toilet
-Sometimes sims falling asleep in their food with others at the same table will shock other sims
-Teens can live alone if you move the adults out
-Young adults walk slow
-Zooming in on a sims makes them annoyed and they will make a face at you
-Parents can cuddle with their children on the couch
-Sims can cuddle with pets on the couch I believe I can't remember the interaction
-Teens can work at the grocery store
-Teens will run away if they have negative relationships with everyone in their house
-You can change your mailbox color
-Pools can be recolored using wallpaper and flooring
-Your sim can get robbed by a man with a tall hat and annoying laugh
-Sims can get chased by bees
-An easy way to have sims or a family eat at the same table at a restaurant is to create a casual group
-They play real chess
-They can play bingo together
-Children blow and drink bubbles
-Swinging a child around will probably make them sick
-Childrens toy oven makes muffins that you can sell ( Same with lemonade)
-Making a sims cook for the first time without any skills and on speed 3 will cause a fire almost everytime
-Children do not like to see their parents argue or cheat
-The dj booth music is amazing
That's all I can think of for now :)