This video shows that current only travels in circuits or "circles". This is in a way intuitive because a battery needs the electrons to return otherwise the reactions inside won't continue (I guess).
But it is also counter-intuitive because if you think about it, an electron is always attracted to a positive ion(that's why currents of electrons occur in the first place). So the electrons on the negative side of the battery should be attracted to something positive even if there's no loop( or at least some electrons on the surface should move, right?). An example would be the lighting on the sky. All the electrons are stored in the atmosphere and dischared into the ground without an obvious circuit. Another example is the ground system in all houses (an appliance can discharge into the ground).
How can there be two ways in which electrons move?