A dishwasher makes a great parts washer, I've had one sitting outback on a stump wired and plumbed with a garden hose as a parts cleaner for years.
I've run Dawn detergent and even Safety Kleen floor scrubber powder in it to clean parts. I don't much worry about it overflowing with suds being that its out in the yard. It works every bit as good as a commercial spray cabinet.
I used to use the one in the house but it left a nasty gas and oil smell in the thing that wouldn't go away. I never did use the thing for dishes.
That's what the old lady is for.
The hole in the cabinets where the dish washer was is now occupied by my work boots and tool bags I use for work.
In the winter I really catch a lot of grief though if I spray paint anything in the house. I shoot the paint out on the porch but let things dry inside on the table in the heat. I've more than once had paint run onto the kitchen table or drip on the floor. The worst thing we had happen was that she tossed a half full can of red paint into the trash compactor, it burst and shot paint out all around the edges of the drawer, all over the floor, and all over the ceiling above. Since that incident things get left alone.