Automatic Dispenser

This is a automatic dispenser design I came up with after failing at trying to make a grifer proof house (It just exploded in my face ten times.) Scorched I started trying to mace an automatic dispenser. My first, second, and third try failed. My fourth worked so well I tried some Ghast eggs. It worked... until OnigiriG and SushiJ (My friends (Who, on this server, are on survival)) got on. it was interesting (My texture pack makes explosions look like colorful fire works) until one ran through my front yard, which I had just fixed. I was banned for this... genius is being out lawned these days, what has this world come to? After being unbanned I made a smaller one (didn't get a pic; so I'll make another and post it's pic soon) i tested a few ghast to make-sure I had room. I didn't, so about 20 died screaming and alerted someone. I killed every last ghast, tryed Cave spiders, killed them (with lava), and was banned again for the same reason: having the whole situation under control. (The owner doesn't believe me, and pored water on the lava (the experiment is now safely sealed under some obsiden). So, I hope you like it.