Replying to Stealing Beer

Has anyone ever stolen beer from a big delivery truck?  It seems so easy to do sometimes when I'm at Gas stations.

Today I was at a Chevron and two huge trucks of Coors Light were unloading beer into huge stacks in the parking lot and then from there taking them inside.  They had unloaded 3 large stacks of cases on the one side of the truck and they were just sitting there while they were working on the other side of the truck.  I was so tempted to just grab a case or two but I didn't know what to expect.  If had more guts I could've easily gotten so much free beer because there was no way they would've seen me.  They were dieing to be taken and I choked.

I just wanna know if anyones done it because one of these days I think i might because it seems so easy.