ok....
player collides with me from behind
get message that I have collided with player
I am killed, or plane is unable to fly on (killed)
I am towered or bail immediately and go to tower
while in tower get message that player has collided with me
player flies away
?????
Now if both players were killed I wouldn't have much to complain about, it's the other player flying away that annoys me. And it happens all the time to me.
Snailman it's not your fault that my computer goes spaz when you fly near me. You're in Europe. When that happens I get fair warning and avoid you like the plague. 
There are three types of collisions, with two possible outcomes for two of them, and four possible outcomes for the third type.
Type 1, aka "
Its your fault".
YOU see a collision on your screen, and due to lag, the other guy does not.
This is indicated by the message "you have collided"
The other guy will always keep flying in 100% of these types of collisions, no ifs ands or buts, end of story.
YOU will either take damage but keep flying, or you will begin to start to tumble and fall from the sky, no other possible outcome, quit whining.
Type 2, aka "its his fault"
Enemy player sees a collision, but due to lag, you do not.
Indicated by the message "Xxxx has collided with you"
YOU will never, ever, ever take damage from this. Period. Thats all.
HE will either take damage and keep flying, or start to tumble and fall from the sky. That it, shut up, nothing else happens.
Type 3, aka "you both f**ked up"
BOTH you AND the enemy see a collision.
Indicated by the presence of both previous messages
1st possible outcome: You both take damage, but keep flying.
2nd possible outcome: you both take damage, and both fall to the ground
3rd possible outcome: you both take damage, he keeps flying, you die. Its logical, shut up and deal with it.
4th possible outcome: you both take damage, he dies, you keep flying. Its logical, shut up and deal with it.
Now theres some standard procedures when you collide, with action taken depending on how you answer the questions.
1) Did you keep flying?
y: The collision model works, and you got lucky. RTB and get a new plane.
n: The collision model works, and you're unlucky. Shutup, get a new plane, and deal with it.
2) Did he keep flying?
y: The collision model works! Quit whining, get a new plane, and go kill him.
n: The collision model works! Congratulations on your luck! Now you won't have to hunt him down.
3) Are you unhappy about the outcome of the collision?
y: Shutup, its fair, deal with it.
n: Congrats, you're able to deal with bad luck! Reup and get back out there soldier, the war continues!
3) Do you think it was unfair?
y: Shutup, you're ignorant and don't know what happened. Go educate yourself with the many resources available.
n: Congrats, you're not a confused, sniveling tard!