"Thank you, and please come again," Lisa says to the day's last customer. Phew, what a day, she says as she settles into a chair to assess her swollen feet. "You should really take it easy; why not stay at home tonight?" Emma, her best friend and roommate, suggests from behind the counter. "You know I need the money, besides it's nothing and there's no one at the office at night so I will take my time and clean most of the stuff sitting down" , she responds with a grin on her face. After locking up and changing from her waitress uniform to an overall, she heads to the office where she works at night. Every night, she clocks in at security and heads to the top office; for some reason, there is a large bathroom with a shower, but the office is never inhabited.She likes to take showers there

