Counterpoint: was the person cautiously exploring the hotel wary of ambushes, traps, or hazards all while keeping an eye for treasure or hidden things? Probably not. Hence reasonable precautions. A reasonable person would be scanning the zone for anything from loose bricks to cobwebs to bats or green slime. But to declare at every X feet you are checking the ceiling, walls, floor, smelling for gas or rot, listening for noise, etc gets tedious and can easily be handled via skill checks and/or common sense.