A few different thoughts here.. Your example is actually spot on: "I had a beautiful wedding, but the walls were yellow." Did the walls being yellow make the

A few different thoughts here.. Your example is actually spot on: "I had a beautiful wedding, but the walls were yellow." Did the walls being yellow make the wedding a disaster? No, but did the yellow walls somehow lead to a less than optimal result? Yes. In the first statement: "I had a beautiful wedding. The walls were yellow", it is almost misleading because the statement is withholding the idea that the yellow walls were a bad thing. It's up to the reader to decide how bad the walls being yellow were. Some readers may decide that the wedding was completely gashed, others may decide that it was 98% great. Another example to consider: "I had a beautiful wedding, but the cake was not enough." vs "I had a beautiful wedding, the cake was not enough". The latter is not as clear, was the cake just so good that it ran out? The first one, implies that there was a greater expectation. Which goes to my point, it's a big omission if you leave out the idea there was a greater expectation.