Pet Peeves--Commuter Edition

People who sit on the aisle on BART or the bus and leave the window seat free. And won't move over when others (like me!) want to sit down.

I understand if they have a large package or a suitcase they are keeping in the aisle or if they are getting off at the next stop. However, if they're not--why should I have to crawl over them (and their laptops) just to get a seat? I have a briefcase and a purse, too, just like they do.

And if they don't want me to bump their laptop while I'm climbing over them on a moving train to get to the empty seat, either close the laptop or move over! How hard is this to figure out?

Sheesh.