Cursed wind instruments (bugle, whistle, most horns) stick to your face when used, preventing you from using #chat or making other forms of conversation (to shopkeepers, demon lords, priests, etc, though most of these are ambiguous on whether the hero needs to speak) and possibly also preventing eating.

Alternatively, using the cursed wind instrument could simply produce “You hurt your vocal cords!” and make you mute for some length of time.