Stairs: the final frontier - for you, they are a way of getting from A to B. But for your puppy, they're a terrifying road to god only knows where. You'll spend what seems like an eternity watching them get ever closer to the edge, cautiously peering down at what lies below before freaking out and going to you for help. Then, one day, they'll finally pluck up the courage to make that leap as they question what the problem was. Extra points go to anyone who has gaps between their stairs or spiral staircases. You guys are winning.