Scrolling through my phone for pics and ran into this one. It was probably about 2 years back when I was living and working out of an 800 sq ft apartment in Anaheim. I used the bath tub as a dust free spray booth since I didn't have access to an outdoor area or garage at the time.
The spray results are as good as any, if not better. Just line the inside of the tub with newspaper, turn on the fan and spray away! Once you're done spraying close the shower curtain to contain the spray dust to help minimize clean up. Everyday you take a shower it automatically washes the mess away lol!!
On a more serious note, this method is not a good idea for obvious health reasons. Short term/temporary use is fine especially when you don't have a choice. I'm just glad I don't have to do that anymore.