Is yawning during class, or while someone is speaking to you rude behavior?
373477
Yes, it is rude to yawn while someone is speaking. I especially hate those who make those loud noises and they have their mouths wide open. It gives a message to the speaker that he/she isn't good enough or is boring. When people can't control their yawn, they should at least do it discreetly and  cover their mouths.
109006
it is when one or more student annoy the class by misbehaving or it could be a natural disruption like a chair falling suddenly. Hopefully it wont be an earthquake. Thats natural too.
178925
The reasons for this are unclear; however, recent research suggests that yawning might be a herd instinct.\n\nHerd Instinct\n-------------\nThe so-called herding instinct is a social tendency in humans to identify with and model many behaviors and beliefs after a larger group of individuals with whom they identify. This is sometimes referred to as "following the herd." Such people are sometimes labelled with the derogatory term "sheeple."\n\nSince the herding instinct includes both behavior and belief, the term 'herd behavior' describes only a part of this complex phenomenon in humans.
1176731
This roommate of mine saying "No...No...No....No" because I told him to shut-up three hours ago.\n\nYou can see what an exciting life I lead. ENVY ME!!!!
542822
yawning is usually a result of a slight lack of oxygen. therefore if one person yawns, the same conditions exist for others in the room.
41848
I have a theory on this to share.\nMay be yawning is not a chain reaction at all.\nIts just our reaction to the state of things, outside as well as inside our body.\nFor instance, we feel sleepy when our brains are tired or refuse to process. Result is that we all yawn when after a tired game, after a boring speech.\nMay be even when there is lack of sufficient oxygen.\nWe all have different reaction times though. Thats probably the reason why its being mistaken to be a chain reaction.
239365
yes, it happened once when i did not finish my work and techer asked me the reason! dumest thing to ask! guess when would be my answer?\n \ni said i did not finish my work coz i was stuck up in the bathroom for 8 hours! the teacher started laughing and i said it was not funny coz i was crying then she said "Zip up your fly." and the whole class stated laughing! my zip was open in front of the whole class!!!!! i was so emmbrassed that i did not go to school for a whole week!
901331
yes, all the time in class when a girl walks by....im serious it's annoying i cant focus on anything and they must catch me sometimes and think i m a weirdo like you do...
142620
No..A yawn is something your body does when it needs a little more oxygen. Like if you were in a small area your body will yawn to get as much oxygen it can and remove the carbon dioxide .. all you have to do is take a deep breath and go about your business..
586822
yawnnnnn.... what were u saying
278537
busted on the yawning while reading...lol.  but it IS 7 am, so give me a break!\n\ni try to stifle the yawn so i will not give the impression (even if it's true) of wanting to cut off a conversation or exchange.  sometimes i can't help it though (how embarrassing) and just let 'er go, big old cavern.  then usually the other person will do it too... WHY IS THAT?\n\na yawn is not a 'tenser-upper' for me, instead it's a release... i'll stretch and yawn for 30 seconds if i have to...and sit and 'meditate' a bit longer if i can. and yes- yawns last even longer if i'm sitting here alone typing!
231577
lol yes... I'm a kindergarten teacher, and it happend to me in the middle of a lesson.  The kids were snickering and whispering to each other "Miss K farted."  I was so embarrased, and I acted like it didn't happen.  Just told them to stop talking or I'd change their cards to yellow.  I resumed w/ the lesson.  I tried hard to clench up and hold it in, but it didn't work. lol
865037
Faculty meetings are notoriously boring.  Ours are ridiculously early in the morning.  One teacher fell asleep and began to snore LOUDLY.  Did we wake him up,  NOPE.  In fact we tip toed out of there and waited until the bell rang and he got up with start and bolted out of the door.
607567
Urge to yawn on seeing someone else yawn is called reflex yawning. When you see someone else yawn, it sends a message across your brain that you also need more oxygen and as a response your open your mouth wide in an attempt to get in more air and your lungs expand (i.e you yawn).
819788
Sympathetic yawning is a good answer.  But a yawn is actually a deep inhale, it may be that for some reason there is a slightly lower amount of oxygen in the air and that particular location and you are both simply trying to get more air.
400444
Why is it when I read your question I instantly yawned????
1170939
From what I've read, we are not sure exactly why that happens, but many doctors and scientist believe is is due to a mental reaction that sees a person yawn and believes you should do so as well.  Yawning is a response to a lack of oxygen in the brain under idle conditions, such as standing around or sitting in a chair.  So when you see someone yawn, your brain triggers a yawn to make sure you are also not starving your brain.