I support quite an obscure football club, it's the one thing people always remember about me.
I bumped into someone I haven't seen in 20 odd years last weekend, his first words, before he could recall my name were you support "xyz fc".
My club has made a big announcement today 3 people where contact had fizzled out a bit have been in touch to talk about it.
When I worked in sales, if you knew you were meeting a football fan, you always checked their teams results and a bit of news about them before you went.
People love to sneer about football but in a world where these little contacts make things happen, what else is there that has the same impact?