As Isaac King makes his way around the Rhinelander Fire Department, it's obvious he knows just about everything there is to know about firetrucks. "Over here there are wrenches so you can open the nozzle," said Isaac as he demonstrates how to open the nozzle on a truck. The 7-year-old started visiting the fire department more than two years ago. He loves learning about the trucks and hanging out with his buddies. "I really like seeing my 20 best friends," said Isaac. The feeling is mutual. "If Isaac's got a smile, I guarantee you that every person in this department has a smile as well," said Rhinelander Fire Chief Terry Williams. Even with all his knowledge, Isaac isn't quite ready to help his friends fight fires.