Had a real eye-opener today when I went to sub in third grade.
It's a tough class (heck, it's a tough grade!), so I was a bit hesitant about going in there mid-afternoon for who-knows how long. But the second I walked in, I got about six hugs and several students asking happily if I was subbing for them--including a "yay" out of one of the boys who I would NEVER have expected it from. They were noisy, but it wasn't awful. Again, another instance of when I need to stop going into things with negative expectations...I keep being surprised!