"If cyclists behaved, maybe we'd stop having a go at 'em". It's such a breathtakingly stupid argument, it's just beyond logic, and worryingly seeks to create the assumption that everyone thinks this way about a particular group of fellow citizens.
I got called a wanker by a ped the other day, essentially for being present on the road. I think I held her up from crossing the road for a good two seconds as I went by. Another time a car pulled out on me from a side road, knocked me off and while I'm sat in the road regathering my senses, some other car stops and the driver leans out and said "serves you right".
"If cyclists did not exist, maybe we'd stop having a go at 'em"