Please read all the edits

Added disclaimer;
Added help page (--help);
Translating all the inline comments in English (one day .po & .mo for help page and "Mannaggia %s"?);
Increased execution speed (maniacally converting short "if then something fi" to "condition && something") (That does so much cool!);
Indented maniacally;
Added --oneshot.

So test:

    tuxs=("tux cow gnu bunny sodomized-sheep pony vader meow");while true; do ./mannaggia.sh --audio --oneshot | cowsay; done

It's pretty lovely <3