I had the same problem when I had my eris and it drove me batty...you can try the Call Confirm app. I haven't needed it yet on the fascinate but I don't keep it in my pocket all that much. As far as your other questions, I will have to defer to the awesome, smart folks on the forum.

Good luck!

 

I have no possible idea with how you can pocket dial with any capacitive touch screen phone. Especially while using a pattern unlock. I'm going to vote user error. Sorry