Patterns of behavior

Patterns of behavior are entirely separate from modus operandi.

M/o is limited to the actual criminal act. A B&E man's M/O might include cutting the backdoor screen and taking the silverware. The fact that he defecates on the living room rug every time is not part of his m/o - it is a behavior unrelated to the crime at hand, burglary/theft.

Cutting a screen is nevertheless an instance of behavior.