| He had caused no trouble and kept himself to himself, but had been behaving erratically for a few days in and around the flat. |
| An erratically fluctuating power supply can wreak havoc on any system and may cause it to hang or shut down spontaneously. |
| Clutching her hand to her erratically beating heart, she glanced around her. |
| The risk of depression may increase again during the transition to menopause, when hormone levels begin to fluctuate erratically. |
| Officers spotted the car, which was towing a speed boat on a trailer, being driven erratically. |
| But before he had a chance to say anything else, the screen began flickering and wavering erratically. |
