Sayyiduna Abu Hurayrah رضى الله تعالى عنه narrates that the Messenger of Allah (peace be upon him) said: When any of you fasts, he should not engage in futile conversations, nor raise his voice If anyone is abusive to him or fights with him, then he should say, ‘Indeed I am fasting ‘
(Bukhari/Muslim)
When permissible things like eating etc. is forbidden during fasting, then impermissible actions should be avoided to a greater extent.