ensure that a sleeping steed doesn't answer you

src/sounds.c

@@ -867,9 +867,14 @@ dochat()
     }
 
 #ifdef STEED
-    if (u.usteed && u.dz > 0)
-	return (domonnoise(u.usteed));
+    if (u.usteed && u.dz > 0) {
+	if (!u.usteed->mcanmove || u.usteed->msleeping)
+		pline("%s seems not to notice you.", Monnam(u.usteed));
+	else
+		return (domonnoise(u.usteed));
+    }
 #endif
+
     if (u.dz) {
 	pline("They won't hear you %s there.", u.dz < 0 ? "up" : "down");
 	return(0);