Whenever you're cleaning, or even rinsing them, make sure to push the button and run some water or whatever through the spout. If you don't, at least on some of the Bombardier ones, the button on the spout will eventually start to stick (in, of course). And Murphy won't allow it to happen while you're bored in cruise. Oh no... it'll be when you're descending through 12,000 into a major class B airport during a push. The passenger who ignorned the seat belt sign and was up getting coffee will wait until their cup has been overflowing for a few seconds before they frantically tap you on the shoulder, point to the cascading coffee that is going everywhere, and shrug. So in between radio calls, reading checklists, and typing in the box like a madman because ATC can't make up their mind, you'll get the pleasure of a piping hot coffee bath as you reach back and yank out the pot so you can stand it on it's end behind your seat and stop the mayhem. Ask me how I know... :cwm27: