Rain + Dirt = MUD!

It rained yesterday. It rained and it poured and it rained some more. On the bright side: the grass is a bright and beautiful green! On the down side: muddy areas not covered by grass attract the dirt-loving mind of a 3 year-old. In my case, two of them.
This is what happens when I turn my back, to clean the kitchen floor (how dare I think I can get something done?), and take my focus off of Joe and Mary: They dig in the non-grassy (muddy areas) part of the backyard. Rookie mistake, shame on me, I should have known better.
They love to dig in the dirt. This time, not only did they dig in the dirt/mud, they collected said mud into a bucket and 'washed' Joe's fire truck. The truck, their hands and feet and clothes were covered in mud! They also 'swept' the porch with the mud using a play (indoor) mop. UGH! Welcome, Monday!