If you're last pick and you're team needs you to play support, f*cking play support. DO NOT say "i cant play support" or "i dont have support champs". We ALL know this is a lie. Sure you might not be the best at supporting, but its better to pick an easy support like Soraka instead of picking a double ADC or Teemo with smite (which ive seen in gold many times).
Seriously, if you actually cant play any supports, then learn how to do so. You cant play ranked without being able to play any role decently. Im sick and tired of seeing people troll or afk after being forced to support.
Also, thumbs up to all who main support. You're the heroes of league.