 Okay, so you've just been stood at the whiteboard. You were probably talking to your colleagues and you were like, oh dear colleagues, how wonderful it is to work with you. Let me communicate. So you took out a pen and with gusto, you started to draw on it. And then you were like in the middle of this incredible speech that you were giving. You realized that you were using a chapier permanent marqueur. You just done a boo-boo. It's dry for heaven's sake. Look at that, don't worry. This is how we're gonna solve it. What do we have here? It's a Lumicolor whiteboard marker pen. Take it out. And run. Gone.