Overheard in the back seat

Where does a lamb get it's hair cut?

At the baa baa shop.

(courtesy of Roman - they start young)

Two atoms are walking down the street and they run into each other. One says to the other, 

"Are you all right?"

"No, I lost an electron!" 

"Are you sure?" 

"Yeah, I'm positive!"

Meow.

"Doc, my dog is real sick," the distraught man said, putting the limp animal on the examining table. The vet checked the pooch, then turned to the owner. "I'm sorry, he's not sick, he's dead." "No, he's not," the man insisted. "He's just sick." "Judy," the vet said, turning to his assistant, "bring the tabby in."

 The assistant placed a cat in front of the dog's nose. The cat sniffed at him, walked across his body and bit his tail. No response. Finally, resigned to the situation, the dog owner said, "OK, he's dead. What do I owe you?" "Eight hundred twenty-five." "Eight hundred twenty-five! What for?"  "Twenty-five for my fee," the vet replied, "and $800 for the cat scan."

Goes by the name Lucky