Wine tasters may not be very consistent, but one doesn't generally send back a bottle of wine simply because it isn't what you expected or you don't like it. Y

Wine tasters may not be very consistent, but one doesn't generally send back a bottle of wine simply because it isn't what you expected or you don't like it. You send it back because the bottle is damaged (corked, cooked, oxidized or refermented), about which people can and do agree. As for the odds that both things go awry; they are slim, but non-zero (these things actually do come in bunches; restaurants that have poor quality control for one aspect of the preparation will tend to have poor quality control for other aspects as well, or sometimes you just happen to be there when new staff is being trained). What is important (and not related in the story) is not the fact that he sent them back, but how he sent them back. Politely indicating that a meal is not what you ordered or is in some way flawed is fine. Being a jerk about it is being a jerk. Of course, if you eat multiple meals with someone, and they find some excuse to complain about their food at all of them, then there's a good chance that they're simply a jerk, no matter how nicely they do it.