Well, 5/5 filled up with spring water. (And yes, I keep tin cups in the car...handy for drinks and sharing quarts of ice cream.)Then one of was annoyed by the bugs and hid away in safety (aka, our vehicle). The ones who kept drinking pretty much needed an emergency rest stop 10 minutes later. Hydrated with mountain spring water...it's a good thing (provided you're not cursing on the interstate, mind you).