As the DM , it ' s not just acceptable to challenge this type of behavior , but necessary . I ' d recommend that rather than making his rolls an automatic failure , u instead say that if he won ' t show u his rolls , you ' ll be forced to roll for him every time he refuses . If he ' s still combative , I ' d recommend taking him aside to tell him that if his behavior continues , he can find a new playgroup . <| sep |> I work in IT for the past 15 years . I know of jobs that are billed to the client at $ 90 $ 100 hour but the H 1 person is lucky to get half of the rate . A common scam is to advertise a job with ridiculous criteria , reject any US citizens who apply to these jobs during the interviews and then give these jobs to H 1 people . I have heard of shady desi companies giving kickbacks to the desi hiring managers for hiring H 1 s .