It's a little difficult for people who live in America's vast urban deserts to understand, but there are some Prius drivers out there who actually have a sense of humor. Note also that it's a CO car with Sooners swag, so, yeah it might be a student car. If so, the stickers are a self-correcting issue. Priuses get a lot 'cooler' when you pay your own way through life. Interestingly enough? It works the other way around with some 'other' things..... The stickers serve to remind other drivers that statistically there ARE people who drive Priuses who have a sense of humor - even if it's a little warped sometimes.....
I suspect Prius drivers have more of a sense of humour about their cars than others do. I posted this in 2014, so I'll post it now for the benefit of newer members. Just saw this in the supermarket car park | PriusChat I stopped off in the supermarket this afternoon. This car was parked next-but-one to mine.
out here in liberal democratic CA, only the "low carbon footprint", "hipsters", and or "liberals that believe every word of Al Gore's climate change" people drive hybrids. i turn heads because im a conservative republican who has solar on his house (free prime charging) and doesn't want to pay $5 a gallon each week to go back and forth to work lol.