Yo I know man. I also wouldn't take that person serious.
I just knew the game and the market, was living in Asia, could buy some yugioh Maxx c cards for 100€ and I could sell it in Belgium for 275€ so I just bought as much as I could and sold them in Belgium.
Like with every investment I can explain the thought process in it and how I did my risk assessment.
Kinda just to show that I can brach off in different investment areas.
But indeed better to leave out of in financial job interviews 🤣