Handy, that Rottweiler-net!
Animals down shafts are quite a challenge - they are freaked-out and a typical response isn't, "boy, am I glad to see you!" - I vividly recall the shenannigans Si Hughes and I had getting a hefty bullock (or was it a heifer? - it was many moons ago, but it was big and pissed-off) out of a 20ft deep open stope at Penybanc mine, Talybont, one summer evening. It was getting to the point where one of us would have to shoot it to put it out of its misery, but we got there in the end and the beast lived to tell the tale, so far as one can interpret moo-ing!