Zac Q does not work on GP barrells... why?!
If you're Zac and you land a Q on GP (or anyone for that matter) and then try and get the pull/smack effect by Q'ing one of GP's barrells you cannot pull the champ you previously Q'ed. I feel like this should be patched so that you can smack enemies via barrell since I'm pretty certain you can with Zyra plants and/or Yorick minions. Would make sense.