"Mommy, you want to know the ONLY reason I wouldn't want to be a fireman?"
"Sure honey. What is the one reason why you don't want to be a fireman?"
"I don't want to slide down that pole."
"Oh, I see. Well, maybe you could just use the stairs. Then would you want to be a fireman? You like everything else?"
"Well, and I don't want to get too close to the fire. That would be dangerous."
"Right, I could see that. So you want to put the fire out from farther away."
"Yah. Like sometimes they put the fire out from ladders."
"Right, that would be great son! Would you like to go up those ladders?"
"Well, the ladders are pretty tall. I don't think I want to go up the ladders either. That might be dangerous because you could fall off into the fire."
"Good point, honey. So you don't want to slide down the pole, and you don't want to be close to the fire, and you don't want to climb the ladder. So why DO you want to be a fireman?"
"I like the uniform and I want to drive the truck."
"Well that is a good basis for a career choice. Well done." (mental note: just be glad he didn't say he wanted to be a fireman because it is a good way to pick up babes...)