Just because you're good at one thing, doesn't mean you're good at another thing.
In college I was good at drinking beer. I drank beer eight or nine days a week.
I even drank beer at work. Granted, I was a bartender so it kind of made sense.
One slow Monday night, instead of drinking coffee mugs of Newcastle on tap, I switched it up and drank coffee mugs of jug burgundy wine.
My manager asked what I was drinking.
Coffee, I lied.
No you're not, you're drinking red wine.
I feigned offense. And thought, How the hell does she know that?
Red wine? I never drink red wine.
Well, you're drinking red wine now because your teeth are gray.
Damn!
I had no idea that drinking red wine turned your teeth gray. I figured drinking red wine was basically the same as drinking brown beer.
I thought I was so clever with my coffee mug full of dark liquid that passed for coffee.
No one would know I was doing anything wrong. No one would think I didn't know what I was doing. No one would see through my facade of competence.
But actually people totally knew I was doing something wrong. They absolutely thought I didn't know what I was doing. They clearly saw my incompetence.
People can see things about us that we can't see about ourselves.
So it's probably better to be humble and honest.