ads are ads, making an ad irritating is often effective advertising, will be stuck in your head and you will remember the product, weather you buy it is another story though.
on the radio the most irritating ads i remember word for word, know the address, phone number, services offered etc, irritating but very effective
the gorilla ad for cadbury was neat in itself, something totally different and caught many peoples attention and bought back to life an awesome song
i hate the eyebrows cadbury ad but i know of alot of kids that love it, when shopping with parents "mummy mummy i want cadbury chocolate"
dont fully agree with alot of the ads on tv, then again also dont agree with alot of programs on tv either, i barely watch it, only programs i watch are family guy, simpsons, king of the hill, jonos new show (sadly finished) thats it, tv in room doesnt even have an arial