In several official episodes there are sick/incapacitated/prone NPCs, although I have not seen any in the Foundry. Has anyone found any?

You can't do this with NPC contacts yet.

However, if you have "friendly" enemy mobs that don't attack you, you could apply a sick emote as part of their customizable behaviors.

Hmm, I'll have to check that out. On a completely different topic, is it possible to set a path for NPCs to follow in space or on the ground?

I'd say the general rule of thumb about the Foundry right now is that if anything you want to do might involve scripting in any way, shape or form, the answer is no.

I haven't been able to find the behavior you mentioned, Darren. A little more help if you don't mind?

There are a few things that come close to a workaround. If you use group npcs that are neutral, you can mess around with animations, causing them to lie down and even twitch like the Borg. I've only messed around with this, but check it out.

Animations are only working right now for group npcs, I believe. Although if you really only want one of the neutral group, you can move the others into the floor to hide, maybe.

There is something about seting them to wander with the ambient combat stuff. I don't really understand any of that yet. There is a dev post.