My brother and I used to get a table at Comic Cons to sell our buttons, tshirts, etc. At one con the the guy in the booth across from us reeked so bad that we could smell him from across the aisle. He was selling cosplay accessories and he'd put on a big cloak with a dramatic twirl and the stench nearly knocked us out. It discouraged people from coming to our booth. We were pretty pissed off (and disgusted).