The Eternal Pancake

What I would like to know is why if someone looks away from where they are going for just a few seconds they will start drifting in the direction of someone going the opposite direction? Seriously, I see it all the time at stores and even in students on the CBC campus. I've even seen people are are looking but are so absent minded they start drifting into others people way. Suggestion: If your prone to drifting I would suggest watching where you are going when walking or driving. It's probably best you don't do any heavy thinking, reading, texting, eating or talking for you own personal safety. Another point I would like to bring up is people who either insist on bring their whole family to the grocery store or they bring just one other who insists that they be right next to each other. I wouldn't mind so much if wasn't for the fact that when they do often the whole isle is blocked of by their family or by having an extra cart lined up right next to them. To expound the matter they often do not check to see if they are blocking other shoppers way as a courtesy to others. I don't want to be rude but... The grocery store is not an ideal place for family reunions. Suggestion: If at any point someone asks to be let through, swears or yells at you while in the grocery store and your group consists of more then two people and or two carts it's best to consider how your party is grouped. It might even be good to split your group into smaller groups. Also splitting any children there amongst those groups to reduce chaos.