Popular perception tends to associate bow tie wearers with particular professions, such as architects, finance receipt collectors, attorneys, university professors, teachers, waiters, and politicians. Pediatricians frequently wear bow ties since infants cannot grab them the way they could grab a four-in-hand necktie. Bow ties do not readily droop into places where they would get soiled or where they could, whether accidentally or deliberately, strangle the wearer. Clowns sometimes use an oversize bow tie for its comic effect. Classical musicians traditionally perform in white tie or black tie ensembles, of which both designs are bow ties. Bow ties are also associated with weddings, mainly because of their almost universal inclusion in traditional formal attire.