I have chosen to write about a zoo keeper who is slowly going nuts as the story progresses but I can tell i'm going to hit a damn writers' block soon so ... I'll take all and any suggestions to heart.
Give him a favorite animal, superiors that have it in for him, a relationship problem. Have the zoo and his job threatened, question the insanity, and give him a way to save the day.
have him feed people to the lions or when he frees the animals replace them all with people in the cages
Maybe he's actually an animal that thinks he's a zookeeper until the end when he looks into one of those dirt covered mirrors that are in the cage with him, that's when he finds out that he is a monkey. The question is was he a zookeeper that turned into a monkey or was he a monkey all along? You could have some other employees of the zoo walk by and say things like "I'm sorry Jim, but I can't let you out. I'm sure you would cause quite the uproar if I did". Little hints that maybe he was human at one time but something happend or maybe it's nothing but general human talking to animal conversation. Anyways, I have no clue where this is going but hope you get over the writer's block soon.
Well as long as you know it's coming don't worry. Take a left at the next intersection and follow the signs. I once hit a writer's block, it was night and I was cruising along drunk and then BAM, all over the windshield. What a mess.
Whenever I hit a writers block I think outside the box a little. I am a musician who's had jazz training and if there's one thing I've learned it's that you've got to be open to the fact that the finished product may look very very different to what you started with. When you hit a writers block you've got to think outside the box - there's a problem that prevents the story from developing so you invent something that'll solve that problem - it may be a new character, it may be an event, a set of circumstances you didn't notice before. All these things will make the story unfold in a slightly different way to what was planned but that's not a bad thing. Besides you have the advantage of writing about madness, much of the obligation for the content to be completely coherant is lost. Another thing - I sometimes find it helps to take some time away from the story - leave it alone for a week or so, then when you come back to it you see it in a new light. Blessings Sebbi