I know I'm a bit of a strange animal (in many ways

) but if I saw an ad which I detested (and that's most of them to be honest) then I'll actually go out of my way NOT to buy the product.
I almost feel like my intelligence - such as it is - has been offended in some way.
Plus the fact of course, that 90% of TV ads are designed to appeal to women, and therefore are demeaning to men who are made to look stupid, klutzy, ineffectual, take your pick.