This Just In!
I was taxiing to the RWY and switched to tower when I got closer. Then the ground controller started contacting me again. I ignored him. Then again as I was entering the runway he contacted me. Then as I was taking off “TFC-004 Heavy, you’re on an active airport. Please contact San Francisco Ground on 121.80.” It was pretty obvious that the ground controller was inexperienced because while I was taking off I almost crashed into an A380 crossing the runway (I was already cleared for takeoff and didn’t see it until it was too late). Thankfully, I’m only 40 landings away from expert.