Price Check on Tampons-Super Plus- Sented!

So why is it when you are sleep deprived, at your wits end, and grouchy the world seems to go out of their way to step on your toes? Or is it that we just notice the stepping on of the toes more when we are in a weakened state? Really did the lady turn around and scowl at me for no reason-was the brand new male checker just as embarassed as i was when the super plus tampons didn't ring up right- Did the person who cut me off then slam on the brakes and go under the speed limit then stop for a bus before the red blinking lights came on... no there's no excuses for that dude... - My point is... Why does it seems like people go out of their way to irritate you when you are having a down day?