Had to look it up:
**** with 911 being an outlier to their MO. ****
outlier, n
1. One whose domicile lies at an appreciable distance from his or her place of business.
2. A value far from most others in a set of data: “Outliers make statistical analyses difficult” (Harvey Motulsky).
3. Geology. A portion of stratified rock separated from a main formation by erosion.
LOL Being a geologist I rely upon vocabulary I'm used to however, the intent was definition #2. Perhaps a Freudian strike/slip (more geohumor).