If you're planning on using them like personal days, at your whim, you're not going to do well here.
If you plan on downgrading am "f you" to a "kiss my ***" in an attempt to roll over some points, I don't think that will work either.
A score type chart probably would not serve you well.
The essence of your question is in itself, questionable.
Did you look at the rules in Free Parking. Also insulting any one any where never goes over well be it on a forum or in the street.