When you have the un controllable urge to bang all near by women even when you know it will effect the little world you live in.
Banging women which you know will get you in trouble causing life as you know it to topple much like the Roman empire.
The below list will cause kirktoppling
Banging your wife's sister
Banging your neighbor
Banging a co worker
Banging your friends fiancée the night before the wedding knowing ur the best man.
Banging your friend daughter