Almost caught

A blonde, a brunette and a red-head all worked at the same
office. Their female boss always set off work early, so one day
the brunette said, "Let's go home early today too, the boss will
never know!"
They all agreed to this, so the next day, they all went home
early.
The red-head did some gardening, the brunette went out partying,
and the blonde went home, but only to find her husband having
sex with
her boss! The blonde went out really quietly, shut the door and
didn't come back home until she was supposed to, and then just
carried on like normal.
The next day, the red-head said, "Let's bunk off early again,
like yesterday".
The blonde replied, "No way! Yesterday I almost got caught!"