Nebo has done that a couple of times. He'll just be acting normal, and I turn around and there's puke. Well, it's really not puke, just like chunks of dog food or treats and a bit of water. I've never seen him really gag it just kind of comes out...

It's happened maybe 2-3 times, and he's never acted sick at all before or after. The one time was right after a very long and winding car ride, and another was after playing, so I suspect that had something to do with it...