I miss OSS and /dev/dsp, being able to write to the audio output like it was a file was great fun. I spent many hours back in the day just using bash scripting to make sound, I never got things good enough to make any worthwhile music but I did enjoy myself. Never accidentally specified /dev/hda instead of dsp but I did once do rm -r /usr instead of ./usr, switched to always using absolute paths for such things after that.