[lsaferite]

Out of curiosity, how do you see the element of detriment being argued? The passenger paid for a seat. The airline will absolutely assign that seat to a standby passenger when they miss boarding. Even if they don't, the seat is paid and less passengers means less feel burn. In both cases the airline makes out better. Is the argument going to be that the airline would have charged you more had you told them you only needed the first leg and by extension you robbed them of a chance to squeeze you harder?