When Sorry is not enough?

Today, I ran an errand at IGA, and I nearly hit someone who was pushing a baby stroller (the old fashioned typed, without any protection) with my groceries. Now, this was clearly my fault, and I apologized. However, one apology was clearly not enough, as the dude had to say loudly, "Hey, watch where you're going!". To which I said again (more loudly this time), "I'm sorry, I did not see."

And then on the way out, the guy with the stroller nearly hits me (or, I nearly hit him) again. But this time, I turned, saw him in time, and dodged him.

Since when was one apology not enough? I mean, I said it in a courteous manner, and I meant it. It wasn't like a teenager who is saying a without any meaning behind it, and is saying it because he/she is forced to. Where did common courtesy go?

People are not perfect, they make mistakes. They also do not have eyes at the back of their heads to see objects coming up from behind them when they turn around. Why is it so hard to just accept an apology, realize the person did not do it on purpose, and move on? No need to raise your voice and yell at the person...

I suppose these are one of my naïve ideas of the world. But I would think that if people acted in a more courteous manner, the world would be a better place. We have other problems we need to worry about, like global warming!

Also, on the way back, because I had to run back to the IGA about something, I had missed the bus (at that time) that would take me home. So, I thought, OK, I'll take the metro. However, I got to the metro station, and I hear that due to "une personne sur la voie" or "a person on the rails", the service on the green line is stopped. By the time a metro rolled around, it was about five minutes from when I could get on the next bus to go home, so I decided to it.

I believe that "person on the rails" means that someone committed suicide... What a lovely way to go eh? Right in front of everyone, blood splattering everywhere. Traumatizing at least a dozen, and requiring many people to need therapy/counselling.