Yep. I just turned Ad block off on Newgrounds to watch a video & this is what happened:

Avast blocked adware from infecting Chrome. Given what's been said by @TomFulp about being as careful as possible when picking advertisers for Newgrounds, I figured that it would be generally safe to turn adblock off here of all places but nope. Apparently when they got Adsense back, one of their ads attempted to attack my computer & Avast blocked it just now. I'm running my other anti-virus software just to be safe but I'm never doing that shit again, not even for my own sake. If this were any other website, I'd be avoiding it like the plague right now adblock or not.