Last week Friday the 13th it was full moon - this in itself is not unusual, just the fact that it doesn't happen that often. The previous Friday 13th full moon was on October 13th, 2000 and the next Friday the 14th full moon will only happen on August 13th 2049, then again in 2063.
Despite many myths, the full moon does not actually embolden criminals, bring about births or make people mad. However, pet owners might want to avoid walking their black cats under the full moon on Friday 13th! he he!