That reminds me of something that happened to me a number a years ago when I was much more likely to freak out on someone ...
I parked my car in a lot and was about to get out when I noticed the woman next to me (in the passenger side) was waiting to get out. So, being a gentlemen, I motioned her to go aheand and get out of her car before I got out of mine.
Well, at that point, she flings the door open and it slams into the side of my car. Instantly, I was pissed. But, what pissed me off even more is that she started to walk away like nothing had happened. So, I jumped out of my car and was basically said "w-t-f?" (Really, I just wanted an apology). And her reply, "What do you expect? You're in a parking lot." and walks away.
I'll not get into what went down AFTER they went into the store ... but it just goes to show that people basically suck.