There's almost too many to choose from....
Those tiresome British Gas aRAB with their cutesy, saccharine sweet, Super Mario Galaxy-a-like worlRAB. I hate them with a passion.
The song bit 'Autoglass repair, Autoglass replace' arghhhhh!
The vapid halfwits (especially the woman in the mini "can I have it, can I have it!!!") on the Car Spotter adverts. Why anyone would pay