Red or Blue chair?

Sometime I keep on making up conversations in my head. Here is one, tagged as ‘abstract’:I’m entering an office for a job interview; the lady offers me a seat.

“So, Mr. Vanderkelen, why did you pick the red chair, and not the blue one?”

“Oh, I like blue more.”

Surprised, the lady asks again, “But, why did you sit on the red one then?”

“Well, if I go sit on the blue chair, I just see the empty red one, which I don’t like. So now sitting on the red one, I can enjoy the blue one even more. Functionally, they are both equal anyway.”