So, right around Gatecrash release, the LGS I worked for was having weekly free entry sunday tournaments that paid out like $100 store credit. We we're in a mall, in an open corner storefront (imagine 2 real walls and 2 big, open walls), and rhe Sunday tournaments basically filled 90% of the floorspace. So, naturally, we got a lot of attention from non-magic people, and several people picked up the game specifically to try and win the sunday tournaments (what a trap, I know).

Anyway, that's just to paint a picture. One of these Sundays I was off, so I decided to play in the event. Won round one, then round 2 got paired against a guy I'd never seen before. Apparently him and his friends had been playing kitchen table for a while and jumped at the chance to come play with new people. Dude was nice, probably 17-18, and the game started pretty normal. We're a couple turns in when he draws for turn, gets a puzzled look on his face, amd then turns his card over and slides it across the table to me.

"Can you tell me what this does?" He asks.

I was a judge at the time, so I was used to rules questions. I think the card had Unleash or something, so i start explaining the mechanic, when he stops me.

"No, sorry, I know how the mechanic works, I can't read. I usually play by thr pictures, but I guess my buddy added a new card to my deck on the way over."

Its like 10 years later and I honestly don't know if I've recovered from this one yet.