Cassandra discusses how to payback HFT traders in real life.
When a HFT trader tries to buy a mango at Whole Foods
When he appears to covet something, say a mango signed at @$1.50/piece, non-chalantly drift closer. When he reaches for his chosen piece of fruit, make your move, and seize the object of his affection before he can get his mitts on it, using your sharp elbows if necessary to pry it from his hands. I can tell you in advance that this will not curry his favor. Nonetheless, open a dialogue and, without emotion (or an inkling of kindness or warmth) and without any indication as to your actual indifference to the item, ask whether he wanted that one. Accompanying a look of exasperation, he will likely say something like "Duh!" (a response testing the limits of his non-PERL, non-C++ interpersonal vocabulary). If so, empathize for a brief moment at how lovely indeed THAT mango is, and offer to sell it to him at $1.55 or whatever [higher] level you serendipitously desire. Should he hesitate, place it in your cart. Rinse. Repeat.
Situations where people who have no natural interest, who forcibly intermediate to take advantage of privileged information access, flawed market structure, reveals warning signs of market failure. Until this is addressed, we can each, when the opportunity presents itself, demonstrate some instructive payback to the misfits who ignore or who are unable to understand the coarse, corrosive effects of their pursuits.
Tags: High frequency trading techniques, HFT in real life, high frequency trading payback, payback hft traders