Boy, are you dumb.

2 seconds sound clip from the Race for Your Life, Charlie Brown movie soundboard.

You can hear this line at 00:58:13.617 in the DVD version of the movie.

Quote context

[...]

- Okay. If that's the way they want to play, we'll sleep outside. Come on. Let's make camp.

- The worst storm of the past decade has struck the high mountains. Travelers in the high country should put on chains immediately.

- Put on chains? Being lost up here in the middle of nowhere isn't enough. We gotta wear chains too!

- Good grief, Sally. Don't you know anything?

- They're talking about mountain climbing. Mountain climbers chain each other. So if one falls, they all fall.

- Boy, are you dumb.

- Okay, troops. Time for chow. Let's go find the guys. Maybe they got breakfast started.

- Hey. Reminds me of Christmas. Maybe we should pick out a Christmas tree.

- Great. Let's get a big one painted red.

- No. I want one of the short, fat ones.

- From up here, we get a good view. Let's pick out our trees.

- Hey! It's Chuck and his gang. Chuck, what's going on?

[...]