Dog Anal Raping?????

You know how when you're talking to someone and you're pretty sure you know what they're going to say and then...SMACK!!!!!! I'm at the vet having my dog checked out for dragging her ass across the carpet. My wife did some research and found out it was the anal glands or anal sacks as they're sometimes referred to, I just recently found out. So I'm telling the Vet why I'm here and his response to her ass dragging is "oh thats from anal sex." And I'm like right...wait...what! He then explains to me what anal sacks are and his dog had to have them taken out and I really stopped listening once I was sure he wasn't accusing me of anal raping my dog. It's a basic part of conversing that I didn't adhere to. I talk and he listens and then he talks and I LISTEN. I'm not supposed to think about what I'm going to say or assume I know what he's going to say. Listen, and you won't be accused of dog anal raping. Pretty simple folks.