i had a case about that last year. a company ordered a survey of marketing professionals. they were greedy so they chose a weird structure that excluded demographic dimensions such as gender and age because “these are obsolete terms”. ok. we ran a survey - sent it over. the next day - “oh can you break down by the demographic dimensions too?” - the answer was “no” because they literally excluded all those things themselves. but then they asked “why?” and i tried explaining that that’s not how it works and then they asked “but you did it anyway, right?” - and then that look on the face when they realized that we didn’t because we weren’t paid for that. in their mind they would pay less for a reduced survey but since i’m a sinister malicious individual who has nothing better to do than to hoard data for the sake of it - i’ll run the full survey anyway and when they start bitching about the quality of results I’ll be forced to add it back so they will a full survey but pay 20% less.