Miswak with Excrement
Scholars have said that if someone sees themselves using excrement or something similar as a miswak (tooth-cleaning twig), it may indicate that they are following a tradition or custom in a manner that is religiously disliked or forbidden.
Per Ibn Sirin's Muntakhab al-Kalam fi Tafsir al-Ahlam
Note: These are traditional scholarly interpretations (ijtihad) drawn from a specific classical source — not a binding religious ruling, fortune-telling, or a prediction of the future.