Attack your clan mates

It'd be great if there were a feature where you could attack people in your own clan!

This would start trolling/flaming/hate in the clan thus causing them to fall apart.

Welcome to the forums!
Please use the search function before posting, this idea is very common.

Here is a twist... Let people attack each other as practice... But same as attacking use resources to build troops and don't get them back after attacks. No losing trophies or resources from being attacked.