I have discovered a wonderful goose deterrent. A hand launched paper clip gun! Go find a wide, tan rubber band and a jumbo paper clip, and check this out!
1: Pull apart the paper clip slightly, making the two sharp ends face each other, almost touching.
2: Fold the two ends into themselves, so that you have a shape kindof like this:
3: Now, stretch the rubber band between your forefinger and thumb, sliding the paper clip onto it and pulling it back with the opening facing you.
4: LET IT FLY! If you pull it back far enough, you can get high accuracy up to about 60 feet or so. I can hit the man sized bush across the lot from my bedroom window. Stupid geese...crapping on all the pavements and making all kinds of unGOdly noise...SHOOT EM!
These don't kill, so don't worry.