It would be awesome if you could not attack in mine's then i wouldn't lose so many diamond pickaxes :/
When i first got a diamond pickaxe i was so happy i went mining and thought "Every Thing Is Gonna Be OK" But no i was wrong very wrong when some mutant came in and freaking killed meh! I was like this link below D: img02.deviantart.net/a5db/i/2013/158/4/0..._lemmino-d686kle.png
i lost 3 diamond pickaxes in a day was not very happy but like BIWX said bind a key too /holster and if your afk use the steam browser so you kinda know whats going on around you.