My very first job as a programmer was at a company which just started an internal chess championship. I entered the competition mainly to get to know the colleagues and have some fun, expecting them to be very strong players.
At the beginning of every match I asked them the question "IIRC the knight moves in an L shape, right?". That question was enough to make my opponents brutally underestimate my game. By the time they realised the error they made, they were in deep trouble: 5-6 pawns down, very difficult to come back. I've got my first 3 or 4 games easily won this way and the next player said something like "haha, yeah, cut the bullshit". I won that game too, but much harder. That first easy victories made win the championship in the end and got me the reputation of a smart guy.
As a junior software developer (among 12 other juniors who joined the company the same day as me), it was a nice way to make myself noticed.