if player has already left, don't notify again
if player has already left, don't notify again

cryogen/throneteki,Antaiseito/throneteki_for_doomtown,gryffon/ringteki,cryogen/gameteki,jbrz/throneteki,samuellinde/throneteki,cryogen/throneteki,cavnak/throneteki,ystros/throneteki,jeremylarner/ringteki,jeremylarner/ringteki,jbrz/throneteki,cavnak/throneteki,samuellinde/throneteki,cryogen/gameteki,gryffon/ringteki,DukeTax/throneteki,DukeTax/throneteki,gryffon/ringteki,Antaiseito/throneteki_for_doomtown,jeremylarner/ringteki