Can Creepers Kill themselves

Yes, they can kill themselves by going into lava ( if there stupid enough to go into the lava). If a creeper starts to follow you, make it go to lava watch them burn. In Creative Mode, if you hit the creeper and it follows you and you see a lava fall, make the creeper go in it. If you had a pet creeper and was dumb enough to go in lava, it would die.