Some customers prefer to learn by experience, rather than listen to the waitstaff who know what they're talking about. This customer chose that route, and was quite displeased with her experience. You can't please everyone, which is especially true when it comes to food service gigs. No matter how long you've been waiting tables, there will always be those customers who ruin their own day by not understanding what they're ordering. Some customers will order a burger, then get upset because this…