Coming from someone who has ridden/poached Z's a fair amount, I feel like everything you build should have a lock and you have the only keys man. You work far too hard for anyone else to be able to ride your trails/jumps without your permission.
as much as people who ride with no work, i have to disagree with will there. whats the point of making trails if people can't ride them. just hide them well, and finding it will be the reward.