answer: Both #Person1# and #Person2# think Tom was joking when he said about giving up his business to go to medical school.
documents: #Person1#: Tom must be joking when he said he plans to sell his shop and go to medical school.
  #Person2#: You are quite right. He is just kidding. He's also told me time and time again he wished he'd studied for some profession instead of going into business.