Too many miles, no problem...add a crazy segment at the end
Just an observation
If you are planning a OneWorld mileage based trip and you find you have just gone past the threshold for number of miles required then you can add a crazy segment at the end to reduce the number of miles.
SEA-DFW is 1644
SEA-DFW-DEN is 1023
Of course this only works well if you live in a hub like DFW and you just get of the airplane there.
Anyone else thought of this or have examples?