No. Let him! He's played it before.
4 seconds sound clip from the WarGames (1983) movie soundboard.
You can hear this line at 01:42:47 in the Blu-ray version of the movie.
Quote context
[...]
- How the kid get in? Through the back door?
- Can we invade the deep logic?
- We keep hitting a damn firewall.
- If it wants to play a game, then play it. Have it list games.
- No. Let him! He's played it before.
- He can hardly do worse than you have, John.
- Goddammit, I'd piss on a spark plug if I thought it'd do any good.
- Let the boy in there, Major.
[...]