Read some of the stories from here: [url]http://www.customerssuck.com/[/url] While you probably won't have as bad of interactions at a Gardening store as say, people that work in electronics retail, you'll still get shitty customers now and then, and it can be cathartic to read the stories where they get what's coming to them. It will also put your job into perspective, namely how much worse it could be.