You can understand the Vogon guard's response to "hello" even without the babel fish

[eriktorbjorn]

Without the babel fish, you should just here gibberish whenever a Vogon speaks. But that doesn't happen with "hello".

>GUARD, OPEN DOOR
"Iulpfudfudi scavquithaa ri sfud."

Ford continues trying to talk the guard into a sudden career change.

>HELLO GUARD
"Hello to you too."

Ford continues trying to talk the guard into a sudden career change.

>GUARD, HELLO
"Hello to you too."

Ford continues trying to talk the guard into a sudden career change.

I guess GUARD-F needs to handle the HELLO action. In fact, it should probably handle communication similarly to the guards in the captain's quarters, and only answer "Resistance is useless!" (or gibberish) no matter what.