If it looks like fecal it probably is

So we are on a trip staying in a hotel and of course the kids have used all the towels except for one. My lovely wife takes her shower and uses the last one. I ask her where her towel is. I am thinking how dirty could a towel be if used to dry off a clean person? She tells me its dirty, whatever. Women can be so modest. I find the towel and again I might have heard, “its dirty” but with a quick shake I hang it up to dry as I climb in for my shower. I did notice a couple of brown stains but being in a hotel who knows what stains become permanent. Sometime later in the day the stain observation comes out and she confuses that she put the poop stains on the towel. In horror I ask why didn’t you tell me. Her response was she did by saying they were dirty. It would have been too crass for a women to say she had “shitted” on the towel.
Sigh