I interviewed a guy once, after pleasantries he reached into his bag and pulled out a prototype of his invention, which he was trying to sell. It was a fascina

I interviewed a guy once, after pleasantries he reached into his bag and pulled out a prototype of his invention, which he was trying to sell. It was a fascinating conversation, I basically let him educate me on its theory of operation, then it was the next person's turn on the interview team.