Well it happened, heads of state have had a twitter fight. In this case it was Turkey V Israel's HoS, neither of which are known for their restraint.Seriously, it has come to this, a twitter beef. Adios, previous means of ensuring pleasant co-existence through normative diplomacy.Were there telegram beefs with hostile grams sent at each other back in the day? YOU ARE A TOOL (stop) YOU IS MAD DISRESPECTIN ME (stop) HOWS I DROP ONE ON YA (stop) KIND REGARDS BELGIUM (stop).No, there were not. Mind you, the twentieth century had its moments---like the time the then Russian head of state at the UN expressed anger via shoe.