controlling fluid simulations

I’m trying to make a simple droplet of liquid that looks like oil fall onto a flat surface and splatter a bit, ideally i want the fluid to drain into some identations on the ground surface which make up a foot shape after it has hit the ground. I’ve made a simple drop inside a box, but I’m having unpredictable results when i try to adjust the size and shape of the fluid drop and bounding domain box.
Any suggestions welcome