Oh the joys of being covered in vomit and anal gland secretions! A vet assistant's job is anything but glamorous and certainly not for the faint at heart. This is likely your least favorite part of the job, and understandably so. Here's a sample response to the question: "Cleaning up after animals can be pretty disgusting, but it's just part of the job. I keep a positive attitude and remember that I'm helping these animals, and that's what gets me through it. I've experienced some pretty gross situations, like expressing anal glands that exploded in my face, so I think I can handle anything." Giving a brief example of a scenario you handled will show the interviewer that you understand the dirty side of the job and you can handle it.