My friend thinks I'm a mechanic

So few days my friend, I and his family went to buy a new RE classic 350. Everything was done like papers and accessories etc. we were just casually checking light and switches and other things working properly. We just about to take the delivery. Then I saw since bike was started still there was engine light in the meter. He and his family didn't know about these things. I just called the sales guy and asked it shouldn't be here. He said yes are right. Then he took the bike to the service centre and came back half hour later. I asked what happened, he said just some sensor problem. Since then my friend thinks that I am a mechanic. Bcoz he works in a govt department so he doesn't have much time so he called me bro could you take the bike for first service. It would be great if a mechanic goes with our bike. I saw this video and that thought came in my mind