I have almost lost my lane due to Headhunter Caitlyn's AA bug.
I bet I am not the only one who experienced this crap. Whenever I play Headhunter Caitlyn 1 or 2 out of my 10 auto attacks are delayed even if I am playing on ~40 ping all the time. It's not a normal delay tho, like when you are lagging or something but I can clearly see my bullets going out dealing literally NO damage to enemy champion, minion or a jungle monster which can easily determine the outcome of a trade.
I am not quite sure if that bug affects only Headhunter Caitlyn because I have played only 2 or 3 games using her classic skin.