Trying to dry it. Because I'd just washed it. I was trying to wash the soup out of it. Maybe I should stop eating lunch at the PC. (There's a clue here as to why I don't do any work on the Yellow Peril myself...)
I have heard you can do that, as long as you dry it thoroughly and slowly. I think "slowly" is the key word here, as opposed to propped up against a storage heater on the Bessemer furnace setting...