It's good to be responsible and work.
Jay's job is offering extra shifts to employees because they're understaffed.
Jay wants to pick up some extra hours at work.
Jay volunteers for an extra shift and spends it working as hard as he can.
Jay volunteers for an extra shift but spends it playing on his cell phone.
Jay is allowed to pick up as many extra shifts as he wants when his boss finds out what a good job he did.
Jay isn't allowed to work any more extra shifts when his boss finds out he was slacking off.