With the release of slides you can make players say whatever you want when they ride down, including setshield commands. Not only that but they will be carried out.
So if you are wealthy young fellow you could buy lots of password blocks and slides. Set the slides up, set the codes on them, and put a password block disabling you to get on.
When your customers give you the correct pay you can give them the password so they can access the slides.
This may be a lot less cost efficient but, it will define tilt be more appealing to your customers, which=more donations.
I don't care if you hate code shops, this thread isn't for you then.