Imagine this: What was "never going to happen to me" has suddenly happened, and you need to get this hazardous material off you - now! It is all over your clothes, hands, face and getting into your eyes. It is starting to hurt - a lot.
You have walked past the emergency shower and eyewash every day and you just need to get there now. But where is it? How far away was it? Can you see it? How can you find it? Will it work when you get there? Can I get some help?