Max was incredibly snobby about Lil Sebestyen and intermittently stopped to glare at his enclosure throughout his time at the event. Miniature abraxans just have birth defects, don't you know, and he spends a lot of time with way cooler actual ponies when he's home. And obviously Lil Sebestyen was not a very well-trained horse if he needed to be tied down so that he wouldn't escape (never mind that his family's ponies are surrounded by water on all four sides).
Secretly, Lil Sebestyen did make him a little homesick. :(