I never even thought of this being an issue until I read this post. I can see what your point is here.

I am not sure if I have ever hijacked a thread. I may have. But I do believe I have been hijacked. At the time of the thread, I did not realize what had happened. All I did know was that I stopped going to my thread. The subject appeared to have changed from the original.

Thank you for making me aware of this potential situation.