Really!? A little too close!

I was having lunch at a sushi restaurant the other day. There were a few people scattered around the sushi "bar" at various seats. As we ate the place cleared out. There were also tables at the restaurant but the whole place is seat yourself.

So a man with his 2 boys walk in and decide to practically sit on top of me! There were about 50 chairs in the whole place and for some reason the one inches away from me was the place to be. Really?! Why are people so clueless?

Wasabi with that???