Pigs can't be controlled

Put the summary of the bug you're having here

What I expected to happen was...:
I could control it with a carrot on a stick. This has gone on for quite a few snapshots.

What actually happened was...:
It just keeps going wherever the heck it wants.

Steps to Reproduce:
1. Saddle pig
2. get carrot on a stick
3. attempt to control pig
I think it may have to do with the Passengers change and how the AIs work now