<human>: Provide a brief overview of the text.

So this actually happened a few hours ago. I'm taking a world civilization class, and we are talking about post American Revolution. Almost every day, I am on Reddit during this class. I always read the chapters in advance, so I know what the professor is lecturing about, and I make As on all my exams, so I don't pay attention to the lectures much. 

Today I just was browsing Reddit, and decided I hadn't read some TIFU post in awhile, and wanted to catch up. I'm reading some post, and when by myself I'll laugh out loud. In class, I am usually able to just smile like an idiot at my screen and not make any sounds, but today I chuckled at times when reading.

At one point, I laughed quietly to myself, but obviously not quiet enough because some people turned around and gave me a look. So I took notice, and tried to keep myself from laughing. About five minutes later, I couldn't help myself and I chuckled again, this time around ten people turned around and gave me a death stare. I nodded my head in an apologetic way, and closed my computer, thinking I was just annoying them with the sound I was making.... I was wrong, it was much more than just the sounds.  

So this black kid after class approached me and said, "So what do you think is so funny about slavery". Yea, I laughed when my professor was talking about punishing slaves... shit. Then, at the same time, this woman came up and said, "Yea and why did you laugh when we were talking about women not being equal"... Double shit. 

I then explained to them that I was simply reading something funny on my laptop, and I was laughing to myself about that. But see, when I get nervous, I sometimes will start laughing a little bit, which only made them more pissed because to them, I wasn't taking this issue seriously. 

Eventually they believed me and went on their way. But only two of the, lets say ten people, understand what I was laughing at. The rest just think I'm a bigoted asshole laughing about slaves being punished and women not being equal.
<bot>: When reading a TIFU post I laughed at the wrong time when my professor was talking about slaves and women's rights.