I am currently at 8 bad, 1 good.
Frankly, I don't like this event system. Way too frequent and negative. I know it is purely random, some get more positive, but still....
There is a 10% chance each time you collect or pay your bills. However, from what I have seen recently, this seems to be a lot higher. I am getting a negative event every day (except for yesterday).
They seem far too frequent atm.