Oil Drain Plug....RTV!

I am just speculating. I called the mechanic who changed my oil when I was busy and he said he put RTV all over the threads. He torqued it down incredibly tight, I put my whole shoulder into it and nothing. The thing is, if I finally take the bolt out, and the threads are actually stripped, then it won't seal back up properly. I'll be needing to drive the Dart to a repair shop to get the oil pan serviced. I can change the oil pan in my garage, but having a lift is so much easier. I always feel more comfortable having a mechanic with a lift for real under the car work. I can do brakes and that kinda stuff, and I'm willing to help out a few excellent mechanics I know besides this guy.