on the pan test, I just run a bit of water onto my hand and flick droplets off my fingers. My reason is that I absolutely LOATHE having anything plastic near the stove. I’ve had far more mishaps involving errant plastic containers than any other.
Besides, If my hand bacteria can make it into the water and survive a 300+ degree pan, it deserves to outlive all of us.
I’ll echo the other comment about deglazing with other flavorful juices to make a better pan sauce (even if it’s not going to be a sauce), since I just prefer it that way. BUT, a splash of water into a pan sauce that’s simmered for too long WILL restore its glossiness and re-thin it.