When the leash goes slack.
Because you know you made a real ef-**fart**
I don't know, because they charge you $500 for the iLightbulb.
Parents
Because they have a claus in their contract.
Parachute
He's the one with a parachute on his back.
Pulled Pork
The feel the leash go slack! (heard this one while listening to some Irish tunes)
Because they're poor conductors! (I know they're called Engineers but cut me some slack, I thought of this in the 9th grade.)
The employees where slacking off.
He felt the slack in his dog's leash.