Mine has to be the "Picture unsecured loans" advert.
I just get this lovely urge to throw acid in that fat knackers face. Especially in the bit where he goes "No a bit of rain never hurt anyone". I'll gladly hurt you fat boy, just give me the chance.
Fuck off you fat insolvent wanker, why is your bird following you round the (bank's) house with a digicam when you're teeing up a loan in a desperate effort to stave off the creditors.