11.   Elwood L. Brown, the St. Clair County prosecuting attorney, said it was not simply a case of kids making idle threats.

12.   Greenwell is a successful businessman, so his talk of early retirement was no idle threat.

13.   He has made idle threats.

14.   Idle threat.

15.   Idle threats would be a cruel tease.

16.   Is it an idle threat?

17.   It did not seem an idle threat, considering the tension in the air and the weapons the men were carrying.

18.   It is no idle threat.

19.   It may be no idle threat.

20.   It was not an idle threat.