A common scenario, especially for people that have owned their vehicle beyond 30,000 miles, is that the engine suddenly starts sputtering or behaving erratically at certain speeds or entirely.
Apparently, while attending a Sundance Film Festival event, Dunst was acting "erratically."
Police initially pulled Rourke over after making a U-turn at a red light, then driving erratically.
She was panting heavily and her heart beat erratically.
Straight fletching may cause your arrow to fly erratically, causing you to miss your target.
The actor then began acting "erratically" and was warned by airport police to tone down his behavior.
Thick, sharp streaks or colored chunks of hair, often framing the face or spaced erratically on the head.
This fear can drive her to behave erratically at times.
What can happen is that you become trapped thinking erratically about work tasks as you slouch on the couch.