Well, you would be, if you weren't going to go the extra mile.
Before the con, grab yourself a dowel rod or piece of PVC pipe from the hardware store, as well as a signboard and some duck tape or adhesive. Then, in the most annoying font you can muster by hand, in gigantic letters, write those two words that have been the bane of every Zelda fan's existence since Ocarina of Time was released: HEY! LISTEN!
It'll go over great. Trust us.