It would depend on what the fear was and how it was stated.
When I was in 10th grade, a sparrow entered the class and hid under the raised step at the head of the room. We left the windows open all day so that it would be able to get out whenever it wanted to. The last class of the day was math; the teacher told us to close the windows; we explained about the bird but she wouldn’t believe us when we said it might still be there.
Fifteen minutes later, the whole class is in silence except for her writing on the blackboard. She goes back to stand beside her desk and we notice a ball of fluffed-up feathers. The bird had gotten out and jumped to the desk, where it was sleepily trying to decide whether it was morning yet (more like 5pm, you sleepyhead!). The teacher didn’t see it, but she put her hand right beside it. Huh? She moves her hand… touches the bird… who is so surprised and sleepy it doesn’t fly away, just opens its eyes and peeps… teacher turns her head, sees the bird and shootsout, almost jumping over the student desks in her hurry to reach the safety of the door, which she gripped mightily while screaming “take it away, take it away!”
For Og’s sake, it was a sparrow! It wasn’t a snake, a rat, an unknown monster from outer space, a spider or a dead body. A sparrow. A little bird who’d jumped back into hiding when she screeched.
We had to move the plinth and get the bird out. One of my classmates put him on a windowsill and shooed him away. As we were closing the windows, the teacher came back in and started explaining that she was alergic to feaAHAAAAAA! <- this was caused by the sparrow flying back in.
This second time she just went running down the hallway. We retrieved the bird again, but we didn’t retrieve her. We were unable to retrieve our respect for her during what was left of the school year.
As one of my more “problematic” classmates (male) said “heck, I sleep with a babylamp, but if I don’t have one I don’t need to get tied down!”
Being afraid is OK, we all have fears. Being a histeric bundle of nerves is not OK, you should seek medical treatment.