Help!!!!!!!!!!!!!!!!!!!!!!!!!!…

if i go to university and become a big freaking graduate and have a INVENTION i want to build in a laboratory.......is anybody going to ask what it is or can i just build it?!!!!!!!..........are they going to say what are you building why when how what and everything like im in court? or are they going to just let me use the high powered microscope and ecuipmnent????????by the way this is the end of the world.