I think the worst thing is the smell - I just associate it with eating. The reality is that McDonalds actually smells pretty bad, especially when you chant "raw rotten fish" over and over again into your coffee
Love the comments re mcd's and really admire your willpower...It's lucky we don't have one on the island of Guernsey where I live as just seeing the ads before was torture...Well it is my first day ;-)