If you grow a brain you can call me back

If you geld yourself you can call my Dad
If you eat that shit you can kiss my ass 

[...]Castration, and the elimination of hormonally driven behavior associated with a stallion, allows a male horse to be calmer and better-behaved, making the animal quieter, gentler and potentially more suitable as an everyday working animal.[...]http://en.wikipedia.org/wiki/Gelding