I made myself very very small and hid inside an army tuba*
![Tuba Tuba](https://gertsamtkunstwerk.typepad.co.uk/photos/uncategorized/2008/05/18/tuba.jpg)
(I'm the one in grey, holding a camera - natch - next to the woman in purple)
More, later
* it might not be a tuba; it might be one of those confusing brass instruments that looks a bit like a tuba, but, technically, isn't