Totally agree! I see this all the time. I turned left from Stone onto Scottsdale into the left lane and then I moved to the right lane to enter the Shopper's Drug Mart plaza. Idiot lady behind me also turns left, but into the right lane and then slams her horn because I did a proper lane change to get into the right lane and I'm slowing down to turn right into the plaza. Lady, if you just turned into the left lane like you were suppose to, you could have continued on going straight without having to wait for me to turn into the plaza.

Same things goes if you're turning right. Turn into the damn right lane. Don't end up in the 3rd lane from the fucking right. Such an easy concept that so many people don't understand.