For females: blowjob ablities and hotness.
For males: the ability to work as a slave. And the tendency to say, "thank you sir, may I have another?"
Internships vary wildly. The last one I had was with a government agency, so it was decent.
By Federal Law, internships have to be a non-necessary job, and have to be the corporate equivalent of doing this out of the goodness and kindness of their heart. It's not supposed to be beyond full time at any point. So if you end up doing bitch work 60 hours a week, then you need to contact the USDOL, and file a complaint.