Bonnie, of course, was unhappy at having her baby taken away from her overnight, so she did a lot of vocalizing.
Back when I was raising fifty or so "bobby" calves a year, the procedure with a scouring calf was to keep it off milk for at least twenty-four hours, giving it only the electrolyte solution during that time. However, I needed help with the milking!
I knew it was a good sign when I found him bawling for his mom; he was feeling better. I gave him a pill and watched him for a few minutes; I soon got the evidence I needed to show that his diarrhea was gone.
I put him on the off side of the cow, and he nursed on that side while I milked on the other. Once we were finished I turned him out with Bonnie, but I will be keeping a close eye on him and giving him another pill tonight and one tomorrow morning.
I made a video of him trotting and cavorting a little, not acting sick at all. At one point you'll see his mom kick up her heels a little.