a manager from another team is trying to undermine my work . i feel you on that . that is awful . is there anyone above him ? yes but i want to make trouble . he is trying his best but he did n't succeed . you want to make trouble ? i do n't want to make trouble ( sorry ) oh ok ! i see . well you 're not making trouble anyhow , he is
Perceived failure or lack of success triggered the feeling of anger.