Collision with AI aircraft

I want to be able to colide with AI and have nothing happen to me!!!Basically I do not want to crash when I hit other AI cuz they dumb anyways so I they would crush into me no matter how carefull I would be.There is an option in aircraft realizm says: "allow collision with AI Aircraft" (something like that so I have it UNCHECKED should this be CHECKED ???I use POSKY B767-300ER with PIC panel and *.air file etc.. anyhow when I drive into an AI plane I crush or if I hit it with wing, center part of AC goes in flames or head on collision whole from part falls off lots of fire etc etc.. and smoke what have you !!!I have all other options for realism on MAX except I did not want to be able to crush with AI Aircraft... any sugesstions why I still crush with them ???Thanks for help.Andy