I'm working on a Gaea's Revenge set up and was wondering if this sounds a bit too cruel towards the players.
The idea I had was that a rattle snake gets into their tent/sleeping bag and attacks. I'm still working out the details, but thought that given the venomous nature of the attack, players should require a Vitality check until treated with each failure adding 1 physical stress to the victim (poison effect).
I was thinking of tweaking the Flock of birds stats for the snake (features still to be determined), but was curious as to what others thought about the idea.