I often don't get the connection either but I quite enjoy racking the old brain cells. I can only ever come up with obvious connections but I quite like joining in.My big problem I suppose is that to me the associations seem to be extremely obscure. Most of them I don't get. I don't think it should be necessary to have to explain them, or to be so obscure nobody would get them. Or maybemy brain has just got way to much fog in it these days.
Maybe it would work to put the explanation in a spoiler: