Be careful how far you take this. Trying to write off, say, a four-day hospital stay for the birth of a child may ring alarm bells. At the very least, change your fictional client to a Japanese businesswoman.
If you are allowed entertainment expenses, these can be a cash cow. Everything from a hotel movie to an 80-inch TV to an expensive home addition can be broadly explained as “entertainment.” If you insinuate, with winks, smirks and eyebrow raises, that a client desires an escort service, you can get a cash advance with no paperwork required at all.
A family trip to Disney World can be expensed as a “group fact-finding mission.” A calming cigarette habit can be a business necessity. New shoes will allow you to move more productively around the building.
Yes, some of these suggestions may be “morally wrong” or “certain to get you fired or incarcerated for five-to-seven years.” Just remember, everyone else is doing it.