I don't THINK anyone's mentioned:
When the Spell Is Broken Wheely Down New Saint George (which should be the new UK national anthem) Mary and Joseph Old Changing Way
also, not an RT original, but I have a tape of a concert from the early 90s at which he did a psychotic solo version of Ca Plane Pour Moi (no diacriticals available - je suis desolee) that he introduces as "le punk belgique." Alors!