If your dream features irrational behavior, it may indicate some inappropriate or foolish actions you might take in reality. You could end up doing something that will embarrass you. Speaking irrationally or making violent comments in the dream could harm your relationships or situations in real life. This dream serves as a warning to be cautious about your behavior.
From Imam Muhammad Ibn Seerin's Dictionary of Dreams According to Islamic Inner Traditions â entry "Behavior" (page 37) â resolved via the equivalent "Irrationality" entry.
If one acts irrationally in a dream, it means that he will act with disgrace, stupidity or shamelessness in real life. Being irrational in a dream and intentionally using violent or insulting words, and acting deliberately in an evil way means despair of God's mercy. It also means refuting or opposing some thing. It is also interpreted to mean attending to one's prayers without the ritual ablution. Irrationality in a dream also may mean insolent behavior, or ill speaking of peoples , honor or chastity. (Also see Insanity; Mental derangement)
Note: Islamic dream interpretation depends on the dreamer's circumstances and state. This is a general guide drawn directly from the source book.