Billy, guard the booth. And watch So-crates.
6 seconds sound clip from the Bill & Ted's Excellent Adventure movie soundboard.
You can hear this line at 00:31:42 in the Blu-ray version of the movie.
Quote context
[...]
- Billy, you are dealing with the oddity of time travel with the greatest of ease.
- Excuse me. Do you know where there are any personages of historical significance around here?
- It must be the castle of King Henry.
- Billy, guard the booth. And watch So-crates.
- So, who should we get from medieval?
- How about that gnarly old goat dude?
- Ted?
- Whoa! Those must be the princesses you told yourself about at the Circle K.
[...]