I've discovered there are three stages of petting zoo behavior when it comes to toddlers (or at least, Jacob).
1. Excitement and anticipation- He just couldn't wait until it was his turn to play with the animals!
2. Fear and horror- Once we got inside the fencing, Jacob wouldn't leave my side and was holding on to my leg for dear life. I thought we'd have to leave early due to a breakdown.
3. Joy and curiosity- After a few minutes, Jacob totally warmed up and actually enjoyed petting the animals! Of course, it was at about this time that our turn was up and he proceeded to cry.
Stage 1: