Should I go to medical school or mba after my phd?

I am finishing my phd in math next month... i have a job coming up as a visiting prof at a univ. now here's the thing: let me say it aloud: the m-f-ers are paying me a f*** $55K a yr... and thats bec itss a rather good univ..the f***ing avg is $49K (official AMS figures) ... that after four years as a grad student making $16K... i havent used language like this before, or let me say...in a very long time... so do i just kick thins bloody phd thing ... and get into medical school or something? is mba a better idea? i know that mba is for dumbes whose brain cannot process any science subjects... but who the **** cares? the mbas get a motherf***ing $86000 a yr. or should i get into med school...it takes longer but the money is great as we all know... i am just 23 ...i have time... should i go with med school or drop into some mba place or stick to my bloody motherf***ing visiting prof job?