What is your ACTUAL reasoning for undercutting?

[Nixxe]

If someone undercuts me by 1 gil I undercut 50k. If you want to undercut then lets do it! 1 gil is so petty. Be a man. Undercut for real. I do this until the value of the item is so low it is a loss to sell it. This usually chases most people away. When this fails to work I simply make the item at a loss many times over till they do leave. Then I smile, control part of the market and rake in your gil.

1 gil undercuts are smart, not petty. What's petty is getting upset that you have competition and throwing a hissy fit.