Our gutter was poorly joined exactly above our bedroom window. The weep holes in the window couldn't handle the extreme extra amount of water, so the window track overflowed. The result was a pool of water on the bedroom floor.
A bit of caulk on the poor gutter join. A little silicone to make a damn at the weep holes in the window. So far, so good.
Like Lac said. A trailer is a trailer is a trailer.