Originally Posted by
lugnut1
I agree. Even though the service itself is free, the obligation to tip is pretty heavy. And coming from the US, I really don't mind tipping at all. But sometimes I'm stuck in a situation where I'm not holding cash or appropriate bills, and now I'm the jerk who didn't tip. Sometimes those shuttles have to come get me at 5am, and the last thing on my mind is the cash in my wallet.
I'd worry just a little less about what other people think, if I were you. If anyone thought you were a "jerk", then why should this be your problem?