I have nothing to do on AG today so, just list the worst ones you have seen. Share stories if you want.
Here is my list
"Your Mum (I'm Australian)" "Your Dad" "No... IT WAS A BLUE ELEPHANT" "Someone with your great intelligence could not possibly distinguish the difference between red and blue...wait, did I say that right." "I TELL YA THERES A 6 IN JOHN" "So what?" "OMG I am 1337 I deserve order lolz" (Someone said this in real life)
Real conversation: Me: Dude, I could so beat you in hockey! Guy: So? Me: Yeah, so that means I'm better :P Guy: Well-I have a hotter girlfriend so I'm better! Me: Yeah, uh- no.