one time me and a couple friends were near a special-needs room, and a teacher walked out with a box with paper, felt, scissors, etc. a random kid went up to her, sniffed the box and suddenly got so excited that he ran right down the hall, screaming as loud as he can. I still don't know why he didn't get told off. The teacher just ignored it and walked into another door
I guess it's quite normal for that to happen to her.