This photo might also show you what happens when the trailer controls you. I have posted this before.

The trailer took control when pushed by the wind from a passing tractor trailer at just 55 mph or less. I had brakes and an equalizer hitch. But I could not control the trailer at all when it decided to take up two lanes of highway.
So I suggest that one be cautious when it involves trailers and brakes. I will never have one w/o them again. And I would be careful with what I tow.