Person (b) says, well, it's difficult to describe my table but it is waaaay better than yours, so yours is wrong. I saw a table like your once and it was so dangerous it fell over and killed a bunch of people and made babies cry. (false dichotomy, emotional appeal, bald assertion, strawman, affirming the consequent, and argumentum ad baculum).
Person (a) says, that's not really how this works. You have to show me your table.
This part puts me in stitches.