Courtesy of Dozy's thread - I know it was well debated, but because I missed it -
Par 5 in full: Should we manifest a dignified appearance only when attending the programme? Remember that many will observe us wearing our convention badges while in the convention city. Our appearance should make us stand out from the general public. Therefore , even during leisure time , such as when going out to eat after the programme , we should dress as befits ministers who are in the city for the purpose of attending a Christian convention , and should not wear such clothing as jeans , shorts, or T-shirts. What a witness this will give to the community! Jehovah is pleased when our appearance bespeaks our role as ministers.
What a witness? They will think that they are a bunch of nutters! ordering a hamburger in their business suit, that they have worn all day..
BTW I used to hate the annual "What to do at the Assembly" item at the Service Meeting. It was usually assigned to me as the Secretary cum Convention CoOrdinator. I started doing them kind of 'tongue in cheek' but that did not go down well with some..
PS - If they think that Jehovah really thinks like that - I say that they don't know him at all.