Cavalier King Charles Spaniels and their monstrous appetite!

I have a cavalier king charles spaniel named Piper and it seems that, if I let her, she would never stop eating. When we had her at the vets they said that their breed is notorious for gorging themselves. One year we left the chocolate Santas withing her reach and she ate ALL of them! I came home from school to find them regurgitated all over our floor... Anyone else had experiences with these greedy little pooches?