If you enjoy road-trippin’ with your dog and hope the universe of hotels opening their doors to pooches will continue to expand, you don’t want a high profile travel writer to nearly step in a pile of poop in a dog-friendly hotel . It’s not good for the cause. Unfortunately, that’s what happened. MSNBC.com travel maven Harriet Baskas, who recently updated Bark readers about pet relief stations at airports , discovered an odiferous surprise just outside the elevator of a Portland hotel. After her trip, she emailed me and asked if I’d heard about this dark side of doggie guests. I haven’t but honestly this is not the sort of thing violators are going to admit to me. Meanwhile, Harriet uncovered plenty of examples of owners behaving badly. Like so many aspects of living with dogs, a few bad apples can quickly spoil the general good will and tolerance out there.