Step 1. Catch bull calf.
Step 2. Either a) heavily sedate said bull calf or, b) corner, tie up or otherwise incapacitate the calf.
Step 3. Place large elastic band around their manhood.
Step 4. Release "strapped" calf and allow to wander until banded manhood falls off never to be seen of again.
I'm sure those of you who have been following the blog remember last year's episode of castration and the disaster that ensued. Therefore, we had them banded before purchasing them. This did not, obviously, prevent Griz from finding that little bit of heaven laying around the field.