Hi I was cleaning and I noticed these stains on the baseboard behind a fire place and right by the balcony window in the living room.
I wiped one with a dry tissue and nothing happened. I wet the tissue with saliva and wiped one on the base board. It did not smear and came right off. I did the same with one on the wall, this did not smear and I had to scrub it a few times for it to come off.
The link below shows 4 pictures, one picture shows what it looks like on the napkin after I wiped it off the wall.
https://www.flickr.com/photos/137231979@N04/shares/0pSFd2
Any help or advice would be greatly appreciated. Could this be bedbug fecal or possibly spider fecal. I do see the the odd spider here and there but there was no evidence of a spider near this.
If the pictures are not clear enough, let me know and I can take more.