How can i make graffiti more permanent?

Question

i sprayed up my high school then they erased it really fast so i sprayed it again and they erased it again how can i keep them from erasing my "art"

Answer 1

Come to my house and spray my walls up I guarantee that it would be there a long time.I will be in jail for breaking your f#ck#ng neck.If you feel the need to scribble with a spray can practise on the walls inside your own house.

Answer 2

Maybe you will get a chance to visit your local jail and learn from prisoners who have written on the walls there.

Answer 3

Have your "art" tattooed on your own skin if you think it's so attractive and valuable.  Putting it uninvited on other people's property is arrogant, destructive and childish.  That's not "art", it's vandalism.  

If you have such a great need for public "tagging" why don't you see if your local town has a volunteer program for painting public space murals?

Answer 4

Find out who keeps cleaning it up...and kill them

Answer 5

I know a way to make it hold up better to stuff like fading and weather but if they are removing it, then my idea wouldn't help much anyway.  But I'm Not going to tell you my idea because that would make me an accomplice to what is clearly vandalism.  if this is not vandalism then why would they keep erasing it?  In my opinion, it would not be wise to ask for help on committing a crime from a source like this.