SILLY PUPPIES FUNNY REACTIONS TO FIRST CITRUS ENCOUNTER | This one is pretty weird and funny. You know how awful it tastes when something is just a little too sour for your liking? Well, it seems like these dogs know just how you feel. Especially puppies. This video is an amazing mashup of dogs considering, licking and then FREAKING OUT over some seriously sour fruits. Although it can be cute to see your pooch pucker up, too much lemon can cause vomiting and diarrhea if ingested.