why are automatics so messy

You gotta get one of these stucco mixing tubs from Home Depot for draining automatics. Only $5.75 and it's 24" X 19.5". They even sell a bigger one too. Automatics are a pain for this reason, and I feel like I failed if I spill a drop. Although I DO like the fact that you can drop an auto trans straight down, not like a stick shift trans with that input shaft fiasco......

http://www.homedepot.com/p/Plasgad-Medium-Mixing-Tub-887101A/202086173#.UeN70tK-pcs