Dealing with illness and death on a regular basis, the life of some vets can be hard.
So, why do veterinarians do what they do?
Because of moments like this, says one vet:
Last week, Reddit user "bamassippi" posted this heartwarming screenshot of a child's note to her vet.
Dozens of Reddit users soon left comments, lauding the work of Kevin Anderson -- who originally posted the note to his Facebook page -- and other vets and veterinary workers like him.
Sometimes, seeing a kid's love for his or her pet is all it takes to make your day 100 percent better.
For more cute kid notes, click through this slideshow: