The most recent episodes - two on the same day - occurred earlier this month.

Sometimes the episodes occur in the middle of the night.

These episodes can occur at any time, even during sleep.

Another such episode had occurred before this one, in 1963.

An important episode of currency war occurred in the 1930s.

The episode occurred several days before the end, and morning play was certainly possible.

The third episode at the track occurred the following night.

The episodes can occur multiple times a day for days, weeks, or months.

The fourth episode occurred in Houston a few years ago, again at a conference.

She has since denied that such an episode ever occurred.