Innocently browsing today, I encountered this HTML comment that gets rendered due to <-- instead of <!-- ... I couldn't even find the template that caused it, and leave it in your hands, as I've got to go, as Dana Dane said. $ w3m -dump http://en.wikipedia.org/wiki/Flatworm |head Flatworm Jump to: navigation, search Good article Flatworm!<-- This template has to be "warmed up" before it can be used, for some reason --> Platyhelminth worms Fossil range: 40–0 Ma^[1]