Just returned from a two week stay in WDW.....got home last night. I have to say that the less than stellar behaviour I saw was incredible. It wasn't just on the buses either. There seems to be a 'you first, right after me' mentality nowadays.
Then, there are those that stand their ground, in the front of the bus. They don't want to be standing away from their family, so they now block the aisle with their oversizeed folded up stroller and their body. After unsuccessfully trying to move past one dad, I finally just stood there and said 'It's fine if you don't want to move, but there are seats back there, in the rear of the bus, and there are people waiting to get on this bus that could use those seats. So...could you, possibly, maybe, just scootch over a little bit so we can squeeze by you? Maybe???'. Man, that guy wasn't happy with me. But, there were about 6 seats back there!!! When he finally moved aside a bit, the flood gates opened. There was room for about 20 more people!!