Fun story, depending on your sense of humor. Barn owner buys 25 intranasal vaccines, rolls her eyes as we try to explain how to give the vaccine, makes a remark to the effect of "I have owned a boarding facility for 20 years, I THINK I know how to give a vaccine". We try to tell her again, she leaves in a huff. Flash forward to panicked call from said BO. All the horses in the barn have broken with abscesses... yeah, I guess she didn't know the difference between the words "in the nose" and "in the muscle."
And even though it is a serious disease, I love nothing more than opening an abscess and seeing how many buckets I can fill with pus.