Howard had felt guilty all day long. No matter how much he tried
 to forget about it, he couldn't. The guilt and sense of shame was
 overwhelming. But every once in a while he'd hear that soothing
 voice trying to reassure him -
 
 "Howard, don't worry about it. You're not the first doctor to
 sleep with one of your patients and you won't be the last. And,
 you're single. So just let it go."
 
 But invariably the other voice would bring him back to reality.
 
 "Howard, you're a Veterinarian..."