Returning from Amsterdam with a colleague with a model of ESA’s ERS-1 satellite we checked in and proceeded through security. In the departure lounge quick look at each other, where’s the model? I thought you had it he said. I thought you had it I said. Explained to security who escorted us back to check in, just as several armed police were deciding whether to evacuate the terminal. We couldn’t apologise enough and they were gracious if clearly not amused.