@pisastrous You don't get captchas if you are doing nothing, and by nothing I don't mean let the character fishing or mining. Captchas triggers only when you are doing an action.
@CazyBob and @karinsblade: in order to get the first Vet rank, you need to be lv 100 (that is, item level average of 100). Then Vet button, and click RETIRE.
I am getting only Treasure Chests as enemies. I can't get anything better because the max level of enemies I can put is 99999999999 and I have all vet items lv 1215752191 and that's the max lv of items that the "enemy" drops at the moment. I really hope the end-game content or the nerft of vet system cause I don't see what else I can do.
Step 1: Plink. Step 2: ??? Step 3: Profit!