As all those who need to start up their Mac with discretion know, it is impossible, even if one tries to block up the speakers with the hands. The bong always ends up with heads being turne.
If one needs discretion: you will find at the address following, https://www.curby.net/filelib/DebongIntel/, a small program called DebongIntel that will make it possible to conceal your machine (only for the Mac Intel) at startup. There are in the disk image two scripts, one to disactivate the Bong, and another to reactivate it.
[translation by crispin]
