Personally, I'm very uncomfortable with the "attractive nuisance" created by establishments that encourage or require their patrons to unload and clear their weapons outside the store.
This is clearly a side issue to the Cabela's question here, but I think it is an important one.
Gun shops, and even worse, gun SHOWS, don't want the liability for (and to give up the space to) provide a clearing barrel and monitored safety/clearing area. But instead they encourage (not overtly, but de facto) folks to be fooling with their loaded guns out in the parking lot. That's really a poor situation, but very, very common.
We've even seen that a lot in the match shooting community: Folks know they're supposed to prepare for the match by arriving on the line with their gun unloaded, hammer down, and holstered. Instead of using the provided safe areas, we'll find folks clearing their weapons in the front seat of their car, out back in the trunk, behind a tree, or even in or behind the plastic Porta-Johns!
Providing an area to safely unload and clear a weapon should be absolutely a matter of course. (Heck, in states with silly "no guns in bars" rules, there should be a clearing barrel next to the entrance!) The fact that we don't expect this of ourselves and our favorite stores is a failure of basic gun safety!