I see what you mean that sometimes they can be so bad, they stick in your mind. Whether thats the intention or some exec is just poo at his/her job, we'll never know - in most cases, probably both. Having watched the programme tonight with the 100 greatest ads of all time, apparently it works when they are 'so bad that they're so good.' On the other hand, I would never buy head and shoulders shampoo (where's your dandruff and she replies 'all is calm', I mean what is that about!) and I would never ensure my car with Esure thanks to Michael Winner's diabolical ad's, with that stupid woman saying 'hi mum, I'm on the tele!' grrrrrrrrrrrr! :)