la·bor·er n
somebody who works at a job that requires physical strength and stamina.
Encarta® World English Dictionary

I watched these men work under a hot September sun climbing and lifting into place huge parts and pieces of carnival amusement rides. I was in awe of the skill and fortitude of these men, and women. It struck me that the public enjoying the pure joy of a carnival has little or no concept of the sweat and effort it takes to erect the field of dreams. This is a pure case of “ignorance is bliss” Weeeeeeeeee!!!!!