He applies next round and gets an interview. He surreptitiously brings a boom box. When asked what it’s for, he says “please, hold your questions till the end of the interview”. After all of the questions have been asked and answered, he slams play and rips off his shirt to reveal that he’s been covered in strawberry Pop-Tarts and rainbow Spandex the whole time.
Verily, this is the hacker equivalent of professionalism.