> What if all your (Anonymous) friends went to Wal-Mart and stood in line to buy something. Then when they got to the front they would fumble around in their pockets and say, "oh darn, I forgot my wallet", then they'd got out and come back in and do it again?

Here's another analogy (asked of someone who thinks that it's okay to do the above to walmart). Suppose I interfered with your ability to do your job via similar tactics? What if I just blocked your ability to get to work?

What? "You" are not walmart? So what? Are you more important than the folks who work at walmart? Are you more important than the folks who own walmart stock?

Heck - are you more important than the folks who want to buy something from walmart? You're not just costing walmart money, you're interfering with folks who want to buy things at walmart.

Such intereference may not be vandalism, but that doesn't make it acceptable.