What are my chances to get banned for this?

[skruus]

First of all, I'm very new to botting or using any kind of third party software in games. But recently I've decided to code myself a pixel based fishing bot. The code itself is very basic (around 50 lines of code).
To give you an idea of what I did it's just using the robot class from java and analyze the fishing area and click whenever a fish appears. As long as I know, if a bot is private it's way harder to get detected.

So here is my question, what are my odds of getting banned using this?

I'm currently using it on retail around 1~2 hours a day in zones where rarely players come. Is it good? bad? Any tips for using this?

[TehVoyager]

part of how Blizzard detects bots is watching keyboard and mouse input, plus mouse movement. it can act similar to a fingerprint. so make sure you're programing in the mouse "moving' to the bobber, and add in a bit of randomized movement and a bit of randomized delays. having it 'miss' occasionally isnt a bad idea either.