21.   Last year, two old bulls got into a tussle that ended when one pushed the other out through the perimeter fence.

22.   Once he hit the first perimeter fence, alarms sounded and cameras began recording the escape.

23.   On Wednesday, under cover of an intense mortar and rocket barrage, Hezbollah guerrillas planted their flag outside the perimeter fence of an Israeli position.

24.   Since then Greek authorities have made many changes to satisfy foreign critics, including beefing up the security force, building perimeter fences and installing new X-ray equipment.

25.   The convict quickly scaled a sensor-equipped perimeter fence, setting off alarms and alerting another guard who fired at Jones with a tear-gas shell.

26.   The design for the perimeter fence will be adjusted accordingly.

27.   The Pentagon added that the weapon was found two miles from a base runway and within the larger of two perimeter fences.

28.   The six inmates dug a tunnel through the muck from the prison chapel under the lone perimeter fence.

29.   There was a brush fire that ran all the way up to the perimeter fence at the San Diego Zoo a while ago.

30.   Two months later, funding for a similar door for the front entrance of the building and a new perimeter fence was approved.