Someone moves a dresser, or bed, scrapes it, they won't care... sorry, mark my words, accidents happen at any income!   

It sounds like this is shaping up to be a good investment property, in an area you know well and have observed positive trends in, so if as long as you have a little cash reserve for unexpected expenses (always pays to be prepared for the worst) and you've accounted for all the regular costs, then this may very well be a go!

I have had accidents with two table saws. 

This seems to be a case of bad luck/accident.

That is just asking for an accident to happen. 

This will allow for unexpected cost overruns and appraisal coming in lower than expected.  

When our regular flooring/tile guy was in a motorcycle accident and spent a month in a rehab facility, we visited him a few times and brought in foods he was craving.... hamburgers and pizza!

Found this out by accident via craigslist. 

But sometimes I am limited in what I can do in a flip due to constrained budgets or unexpected expenses that we didn't catch when we originally bought the house.3)Our first 6 flips that we did as soon as the 1st showing happened we were made a offer.

When you look at all the expenses, including vacancies, unexpected repairs, etc. will it make you enough that you think it will be a good investment?