OK, maybe scum is a little over the top, but I really do hate how lazy advertisers are.
Current bone of contention being this advert:
Now, whilst I don't think the Mighty Boosh crimping thing is at all funny, it's still really annoying they would blatantly rip it off like this. Just as bad is the Berocca ad. Their player doesn't seem to work, but it totally rips off the infamous OK Go video:
(I was also going to moan about the Crusha advert, but turns out Joel actually did that one, so fair enough.)