This can be done slowly with a saline drip or by injection, which will give him heavy balls like Bulls. This is more part of the medical scenes where you take your puppy to the Vet or for 'experimentation' where just the power of being helpless 'under the surgeons knife'. This is not a main part of the DogTraining scene but a tangent you might like to explore it clearly shows who is in charge. There are some even more advanced scenes, that flow around the medical victim that you can discover on the net, still with the same power exchanges, and raises its head commonly in Heterosexual Magazines such as "Rubber Nurse", Other tangents is being one of Nazi Experiment victims in the Concentration camps, when you face numbing humiliation, before being sliced up like some lab rat. Further demonstrating to low and worthless nature of the piece of meat that is used for today's experiment.

Invasive Procedures: such as sounds, medical equipment , other pipe work.
See Submission