Also MZ, keep them away from high traffic areas, where people are always walking through.
Some it worries them, some it doesn't , depends on the animal.Sorry, i don't agree with that one, mine is in the family room and constantly got her head out of her hide watching the movement, but she has got 180 degree viewing so there's no sneaking up on her, and with timber floors she will generally feel vibration long before she can see you, and no, she's not a 10yo laid back senior, she's only 2.