When angry, sit, then lie
إِذَا غَضِبَ أَحَدُكُمْ وَهُوَ قَائِمٌ فَلْيَجْلِسْ، فَإِنْ ذَهَبَ عَنْهُ الْغَضَبُ وَإِلَّا فَلْيَضْطَجِعْ
Idha ghadiba ahadukum wa huwa qa'imun fa-l-yajlis, fa-in dhahaba anhu-l-ghadabu wa illa fa-l-yadtaji'.
"When one of you becomes angry while standing, let him sit down. If the anger does not go, then let him lie down."
Narrated by Abu Dharr. Sunan Abi Dawud 4782
A short reflection
Physical posture changes the chemistry. Standing escalates, sitting cools, lying flattens. A first-aid kit for the temper.