Yikes!!!! I did a Standard before the holiday that was WAY overdue. His coat felt so grimy and I thought matted. Started the bath and the water ran that rusty red color we all know to well. Because he was black did not even see the flea dirt but once I inspected a bit closer the fleas were running all over! Took 4 baths to get that poor thing clean and coincidently not a single mat! It was all just nasty flea dirt and grim.
It's not what you look at that matters; it's what you see.
Henry David Thoreau