At freshman robotics meet #1:

Me: Alright everyone, now that you've watched the game video (2011), draw out ideas of what robots you think would be the best.

*Freshman get into groups and draw around 20 ideas*

Me: (Looking over the papers) Huh. I see. Does anyone know what's wrong with every single one of these pictures?

Freshman: What?
Me: There's no drivetrain. None of these have wheels

Best part!

One excited freshman: WHAT?! You never said the robots had to move!