Sorry to hear you got hurt and you're right, the construction or lack thereof was improper and dangerous. Hope your ankle is better.
But I agree with milzat. Owning any type of rv will mean constant preventive maintenance and repair.
Here's a list of repairs done in the first fouteen months of my owning my current TT, purchased in Feb. '09.
Dinning table replaced (chairs and table)
Black water flush valve replaced
right front corner water leak
kitchen window leak
replaced broken knob on stove
replaced range vent cover
conertone replaced (shouldn't count this one since everyone has problems with these)
re-alignment of awning
replaced both sidewalls due to delamination
replaced steps due to driver damaging steps returning TT from factory
replaced kitchen cabent door due to damage when replacing sidewalls
Some of the repairs are minor and some are major, but all of the repairs mentioned above have been covered under warranty and didn't cost me a dime, except my time and the cost of towing the TT to my dealer and back home. I expected minor repairs but not the delamination. I will continue to check the TT for needed repairs on a regular basis. I consider this normal owner responsibility. I am fortunate to have a dealer that will help with any problems I have and at least we have a manufacturer that will stand behind their product.
Currently the awning needs to be re-aligned again and some re-caulking needs to be done on the outside since being returned from the factory and the kitchen window is leaking again, but shows only during a hard rain. There have been a few loose screws and things like that, but nothing else major. The TT is finally taking shape and I believe it will be a very good TT which my family and I will enjoy for many years.
Good luck and happy camping!