Have 你 ever laughed in the middle of class, because 你 remembered something funny.(from some time ago)?

Yes, but it wasnt loud. Just my friend, who was sitting 下一个 to me looked like: WTF

ya. In the 日本动漫 Clannad, Sunohara was stuffed into a garbage bin.

Yes, I laugh a lot tho is it was pretty normal.

Yes, not super loud though. That would be obnoxious...xD

Yup. Whenever someone 说 scissors I always remembered this:

No. I have the habit of laughing incessantly in the middle of class not because I remember something, but I was laughing at my classmates 答案 right during recitation. Not to be mean, it was good sports. They laugh at me as well. We're okay with that. My profs. wouldn't tell me off. They believe it's a sign that a student understands the topic. :P

Yes and I have the loudest and weirdest laugh ever! I do but now with classes that have scary teachers , I always try to hold my laughter in but the person 下一个 to me will be looking at me like WTH...and when I laugh people laugh at my laugh if 你 get it XD

Yes, it is 更多 of giggling though and I do that all the time.