A dog would only be afraid of a hose if they had never had any experience with them before, or a negative one. Even though my dog isn’t fond of being bathed, which I do with the hose, she’s not scared of the hose- in fact, she comes running over if I’m hose watering the garden, because it’s her favorite thing to drink out of.
And I’m sorry, but if you want to bathe your dog in the bathtub at your house, that’s your prerogative, of course. But doing so in someone’s Airbnb, unless it’s been cleared by the host, is pretty disrespectful.
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