Last night, my iPad's battery was drained down to 3%. I usually let it get very low before I start a full charge cycle. While using it, I noticed that my taps on certain icons were going unregistered, would sometimes perform other actions, etc... For instance, if I tapped on the Notes icon, it would open the Contacts app. If I hit the letter N on the keyboard, it would register and type O, and other things of that nature. If I tapped and held an app as if to move it, it would only grey out before it acted as if I lifted my finger too soon. If I did get to move an app, it would spaz and twitch beneath my finger. Even the Slide To Lock switch would jitter under my finger. I charged it up to 100%, and it's perfectly fine again. Should I get it looked at? Should I extend the AppleCare coverage? Should I alert the National Guard? Or is this normal? It is a refurb, if that makes any difference.