It is very disrespectful to show up late to a meeting, especially when other people are waiting for you, so it is natural to feel angry when this happens
Context: I went to a job meeting and a couple of people were late so we had to sit and wait for them!
Hypothesis: I was so angry that the meeting started late because a couple of people were late!

Given this context, is the hypothesis true (Yes/No/I don't know)?