Emergency! S04E04 - Nagging Suspicion

Johnny wants to get through to Roy, in giving up his "system" for picking winning horses out of the newspaper. The firefighters rescue a woman who fell into the lion's cage at the zoo and was bitten; help an exotic dancer who became ill from mono at a strip club, to whom Dr. Brackett and Dixie tend; then assist an adult, who fell off a skateboard into a cactus patch on his rump (Johnny then does the very same thing); and save a wounded policeman from a sniper.