A: Did you see that puddle of water on the floor? B: Yes. I called for a clean-up. A: A puddle of water is very dangerous. B: It isn't easy to see. A: But it's real easy to slip on. B: Especially on these slick floors. A: Someone who slips could hurt their back. B: They could even crack their head open. A: We should stand here till the clean-up person gets here. B: We can leave if we put an orange cone here. A: Yes, but I don't know where the orange cones are. B: It doesn't matter. Here he comes now with the mop.