So apparently if you leave trash outside and don't clean it up... you get a trash plant. And it grows fruit that look like little black trash bags..
http://i.imgur.com/1tcWe23.png
Normally I do clean it up, but that was a weird spot. I fixed my fridge (other side of the wall) and it deposited the spare parts outside and I didn't notice it until I had plants. ._.
Also... Insane sims talk to themselves... but they also talk to their friends. Even when their friend is an end table. I've also seen them talk to a lamp.
http://i.imgur.com/SGAAYyF.png