Code used to recreate:
http://paste.md-5.net/mojayimobi.coffee

The example will stop players from pulling armor stands using fishing poles. It works as intended until I remove the hook from the armorstand/world.

After the hook has been removed all future PlayerFishEvents cancel out the exact same way. Meaning, after I try to pull an armor stand I cant even throw/cast the fishing line back out in a lake/ocean somewhere else. Its immediately cancelled.