I don't much enjoy my editor beeping at me.
;; Don't beep. Just blink the modeline on errors. (setq ring-bell-function (lambda () (invert-face 'mode-line) (run-with-timer 0.05 nil 'invert-face 'mode-line)))
This should help Emacs be a bit more subtle in the face of everyday errors, you know, like pressing C-g. BEEP BEEP!