Sadly as a gamer I get a torrent of these type of ads.
My advice is to refresh the page if they are bad but whatever you do don't click them.
Even the somewhat less inappropriate games that make sidebar ads generally aren't high enough quality to bother with anyways.
After long enough ignoring the stuff my mom's browsing on the same network has caused me to get lots of adds for clothing and furniture stores.
Not my favorite ads but they are not terrible.