How many of you have just completely come off as an asshole with absolutely no realization or intention of it, and on what occasion?

This has been one of those days where I feel like a jerk haha. It started with this: http://www.fluther.com/disc/37564/why-is-life-so-meaningless/#quip463981, and then later, I ended up honking at someone on the road and yelling at them cause I thought they were going to hit me, only to find it was my fault. I think… I need to pay more attention to things, especially lately.