Read the following paragraph and extract the answer for the question: What is the last name of the person that explains that Les is having an adverse psychotic reaction to the drug? Comic book fan Les Franken signs up for an experimental antidepressant. Dr. Dobson instructs him to take one pill per day. Les creates a diary for his experiences but feels no results. His lack of self-assurance keeps him from getting to know Maggie, a quiet girl who works at a grocery store. After several days of taking the pill, Les experiences supernatural powers, beginning with the ability to float. Paying a visit to Dobson, he sees himself floating, but Dobson sees him lying on the floor; Les has no powers at all. He explains that Les is having an adverse psychotic reaction to the drug and orders him to stop taking it. Les instead convinces himself that he has telepathy and Dobson is mentally telling him to continue taking the drug. Gaining self-confidence, Les quits his job in order to become a crime-fighting vigilante. He gains a reputation for tackling people after stopping a gunman from robbing Maggie's store, believing he is picking up telepathic intent from would-be perpetrators. He confides his new gifts to best friends Joey and Everett. Their initial reaction to his supposed ability to walk through walls is curiously ambiguous. The viewer only sees what Les believes he is doing rather than what his two friends actually witness. Les offers his services to the police but has to flee when he is recognized as the mystery "crime fighter".
Answer:
Dobson