Or they might have assumed there was something wrong with it. I learned a trick at Microsoft to not have my desk chair "borrowed" for meetings - put a big piece of duct tape on it, Nobody wants the duct taped chair lol.
related, nobody steals pink power tools. A building contractor friend of mine had some pink paint leftover from a bathroom remodel, so he slapped it on all his power tools - no more tools stolen on job sites!