When I used to use trainers.
Sometimes, I'd go right in front of staff, and hack on walls.
Or when my friend was staff on Npulse, and he went behind the counter of a shop, I hacked my way up, and then we convinced some noobs that by boots were because I was staff on UN
Or when I'd hack on UN as a trial, to beat all the quests in a matter minutes (oh wait, you can do that without a trainer!). Or when I'd hack on Maloria.
Yeah, all that hacking history is what lead me to making some of the best hack prevention on a server. Ours was a ****-ton better than mal's.
Pitty I quit Graal, those were some good tools. Everything from speed, x/y, to money.
Cool thing about knowing how to hack is that you can make good scripts to prevent it. I wish I shared them, graal deserves to be hack free.