I forget what it's called but it makes mutant plants.
Step 1- Make mutant plant and raise it three levels
Step 2- Hire Maid.
The maid will feed th plant garbage and make it unhungry so put garbage cans near it.
Step 3- try to get the maid near the plant.
The mutant plant should eat her.
A pop-up will say boo-hoo the maid died may she rest in peace blah blah blah.
Step 4- Hire another maid.
When she shows up she will be a ghost, Thus being able to walk through walls and clean your house faster, making the pay lower!:)