And then when the elevator door opens, they ask the people inside: "Are you going up or down?" There's an arrow showing that, for Christ's sake.
True but sometimes someone hits a button on the inside by mistake. Or someone was going to get off then decides not to.
"Questions are never indiscreet. Answers sometimes are."
Yeah and you can flail your head around looking for the arrow or you can just ask. Especially on a busy elevator lobby there might be multiple cars opening at the same time so you cant even tell from the ding/ding-ding