Rocket Icon Keeps appearing and disappearing on the OS X Dock

It's a python script running, and it was caused in my case by the Tea Timer widget from

http://stefan.sofa-rockers.org/
          ^^^^^
(Get the Stefan reference now?)

Just stopping and starting the timer widget fixed it. Just killing the python process won't stop it.

Hmm, it just occurred to me the timer was going off and I might have had it muted....