What'cha'doin?

Cows are the nosiest creatures. Just stuck my head over a wall to see what was there and they all came over.
Years ago when I worked on sites, we were drilling in a field, surrounded by a heard of solemn cows.
We left the dirty. oily, gritty drilling rig in a field overnight. The next day we thought the the rig had been swapped for a new one. There was not a spot of dirt or grease left. Hope the cows were OK.