On a keyboard safe at home. If you don't like a chant then start one to shout over it. It worked with the north stand St Pauli chant which is never heard now because it was shouted down. Even Albion Albion would do it, but you don't have the courage at away games but wait until you get home to...
It was because there was a Palace fan complete with shirt, in with the Derby home fans giving it large, so he got the reaction that he wanted. It was funny at the time but I guess you had to be there to appreciate it.