The BNSF Mykawa yard is a small yard/division point down here in Houston. It gets traffic from the petro refineries down south, and also feeds an industrial park that has an intermodal facility, automobile receiving, a pipe yard, potato packer, a couple of plastic molding factories, and a couple of other facilities I am not sure of. My question is, I often see a caboose being used while they are picking/spotting in the industrial park. Can you explain exactly what they do with the caboose and why they use it? I know this is a basic question that I should know, but I don't! So, any insight would be appreciated. I am assuming that the guys ride the caboose so they can throw switches when backing up? But then what do they do with the caboose to get it out of the way to spot the cars? Park it in another spur until the switching is done? And how about a lesson on what a "brakeman" or "conductor" does? I've got several Kalmback publications that describe mrr operations, but no commentary on this. Some links or helpful book titles would be welcomed. Thanks!