When you try to cancel the Animatron Workshop quest, the spellguard asks something along the lines of "Are you sure?". Which seems pretty pointless, as the only dialogue option is "Yes.", and even if you use the Esc key to cancel it, that is the answer you have to give. I'm guessing a "No." is missing?
Animatron quest cancelling
Isn't that an open ended quest, like the sewer rat quest?
If so, why would cancelling it even be offered as an option?
No, the Animatron Parts quest is more or less similar to rat-hunting. The Animatron Workshop should let you give up on the quest. I heard this occur in the past as well, I'm guessing it isn't solved yet.
Due to IC events this is no longer relevant.