Keith,
You have to realize that about 10% of the people we come across in life are completely insane if you push their buttons. Plugging a toilet and overflowing it is usually the fault of the operator continuing to flush it and watching it continue to overflow. Also, an overflow usually involves poop, something a landlord wouldn't want to deal with. If the landlord hounded you to clean it up, are you saying you let the standing water sit there and refused to clean it yourself? If so, if you gave those details to 911 I can see why they didn't come out.
Lastly, depending on your age, I can see how being touched, pushed or assaulted could be hard to get over. I had it happen to me about a year ago and it is like it happened yesterday. When people say to "just get over it" it usually comes from zero experience.
My advice: Know that 5-10% of people are completely insane. Learn to use your intuition and good judgement to avoid them because you cannot change them.

