Vet'nery Medicine and other topics

The kids were at the dinner table and Amy and I were trying to figure out photoshop.  We overheard these short snippets of conversation:

McKinna - which is the one that helps animals and plants?

Liam - A vet.

McKinna - Is it --

Liam - It's a vegetarian that helps animals and plants.

McKinna - And a person who helps flowers is called a florist.