Considering the context in which the Dave's symbol turned up, the option key really is a prime suspect.
The weird thing, though, is that I've got a recollection of having seen a symbol like he's describing, but I haven't got a clue what, when, or where, nor was searching the least bit fruitful.
The new Great Equalizer is the SEND button.
In Memory of Harv: Those who can make you believe absurdities can make you commit atrocities. ~Voltaire
