Airport scanning question?

Im pretty against flashin' my big one, and don't want people to see my sausage and grape meal strangled in skinny jeans. I want to keep the whole package concealed. (i'm not saying that it is minuscule!!!) how do they view the scans? out in the open where anyone can flash a peek at, or in a sealed room? also, the people who look at them for a job don't jerk it to the photos do they?