I got three...
1. My dh and I were dining at whispering canyon and he was wearing a big bang theory shirt. we were sitting right next to a door and suddenly we heard someone knocking saying 'penny' just like Sheldon does. We turned and it was a server who was laughing at us.
2. We were on the safari at AK and were in the front row. As we passed the flamingos the ladies sitting next to us leaned forward and asked the drivers why they stand on one foot. he replied 'because if they picked up the other they'd fall over'
3. My all-time favorite tho was with my dad at ToT. It was right after they had started changing the sequence of the ride rather than just dropping you once. My dad asked one of the CM how often they change the drops. Without hesitation the man said 'we change it every fall'. So my dad (who can be a little oblivious) came over and told us 'he said they change it every autumn!' We thought that was odd since we had ridden it twice that day and experienced 2 different sequences. so we asked dad 'autumn or fall?'