title: STA applies to objects and functions?
body: <p>My understanding of STA is that if my thread is running in an STA apartment then I do not have to worry about thread safety and calls to the functions of my thread are automagically queued.</p>
  
  <p>My question is that if I start a worker thread in STA and then obtain an object from that thread via a function, do I have to worry about thread safety when using that object? Or are function calls on that object thread-safe?</p>