Options:-
1. Bring your work home, and finish it off then, please the misses slightly since you're not too late coming home.
2. Stay late at work and finish what you were doing, knowing you would finish sooner than option 1 but likely to get a heavy beating for being home.
3. Be a sensible human being and leave when everyone else does, it's called working hours for a reason.
Take your pick.
Mind you, the options presented above are entirely fictional and has no bearing on any individuals, especially myself.