It seems I can mine while unconscious. Maybe this was caused by coming back to my feet while unconscious? I bugged it IG.

>mine
Sweet smelling air fills your nostrils following the swing of your wide shovel. As you reflect on the pleasant nature of the smell, blackness consumes your vision and your mind goes blank.
Roundtime: 5 sec.

P>song
You are singing the chorus to Harmony. The next part will be the refrain.
You are currently playing your enchantes loudly.
You are not playing any songs.
[Use SONG HELP for more info.]

You leap to your feet with a flourish!

>l
[Ice Caves, Frozen Cavern]
Walls coated in black ice surround the massive cavern, closing it off from the rest of the caves. Faint glimmers of light illuminate the area as torches in the cavern's heart reflect the glow off the ice. You also see an andesite pebble, an andesite pebble, an Adan'f spirit dancer, an Adan'f blood warrior, an Adan'f blood warrior and an Adan'f spirit dancer.
Obvious exits: north, northeast, east, southeast, southwest, northwest.

>mine
You swing your wide shovel, powderizing stone on impact and launching forth a plume of thick dust.
Roundtime: 5 sec.

You peacefully awaken, feeling refreshed.