31.   But when new guards sailed out early Monday for a shift change, the Russian vessel was gone, police said.

32.   He caught Tampa Bay on a shift change and slammed a shot past goalie Rick Tabaracci from the left circle.

33.   He was skating into the Montreal zone after a shift change and intercepted a clearing attempt by Brisebois before wristing a shot past Hackett.

34.   On Saturday, hundreds of prisoners took advantage of a shift change and overwhelmed guards in the General Penitentiary prison yard to attack another group of inmates.

35.   So if an Albanian is turned back at the border, he can simply wait until the next shift change at the checkpoint and try his luck again.

36.   The accident happened during a shift change, he said.

37.   The attack also coincided with a shift change at the agency.

38.   The first frame showed policemen loitering in front of the building and boarding a police van during the shift change.

39.   The only movement was a brief visit by the Red Cross and a shift change of police staking out the rebel-held compound.

40.   The pilots might have been planning to refuel, he said, or possibly they were on a shift change.